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Physics

Mechanics

Easy

Question

$B o d y space i s space m o v i n g space i n space a space c i r c u l a r space p a t h space w i t h space a space c o n s tan t space s p e e d. space I t space h a s space$

$A c o n s \tan t v e l o c i t y$
$A c o n s \tan t a c c e l e r a t i o n$
$A n a c c e l e r a t i o n o f c o n s \tan t m a g n i t u d e$
$A n a c c e l e r a t i o n w h i c h v a r i e s w i t h t i m e$

The correct answer is: $A n space a c c e l e r a t i o n space o f space c o n s tan t space m a g n i t u d e$

$C e n t r i p e t a l space a c c e l e r a t i o n space r with not stretchy rightwards arrow on top equals 5 ı with not stretchy hat on top minus 6 ȷ with not stretchy hat on top plus 6 k with not stretchy hat on top equals space c o n s tan t. space D i r e c t i o n space k e e p s space c h a n g i n g.$

Related Questions to study

$A space s t o n e space o f space m a s s space 2 m v sin space left parenthesis 90 right parenthesis equals 2 m v space i s space t i e d space t o space a space s t r i n g space o f space l e n g t h$ $omega equals v over r equals 100 over 100 equals 1 rad divided by straight s$ $a n d space r o t a t e d space i n space a space c i r c l e space w i t h space a space c o n s tan t space s p e e d space$ $alpha equals fraction numerator d omega over denominator d t end fraction equals 0$ . $I f space t h e space s t r i n g space i s space r e l e a s e d comma space t h e space s t o n e space f l i e s.$

$A space s t o n e space o f space m a s s space 2 m v sin space left parenthesis 90 right parenthesis equals 2 m v space i s space t i e d space t o space a space s t r i n g space o f space l e n g t h$ $omega equals v over r equals 100 over 100 equals 1 rad divided by straight s$ $a n d space r o t a t e d space i n space a space c i r c l e space w i t h space a space c o n s tan t space s p e e d space$ $alpha equals fraction numerator d omega over denominator d t end fraction equals 0$ . $I f space t h e space s t r i n g space i s space r e l e a s e d comma space t h e space s t o n e space f l i e s.$

PhysicsMechanics

$I f space a space p a r t i c l e space m o v e s space i n space a space c i r c l e space d e s c r i b i n g space e q u a l space a n g l e s space i n space e q u a l space t i m e s comma space i t s space v e l o c i t y space v e c t o r space$

$I f space a space p a r t i c l e space m o v e s space i n space a space c i r c l e space d e s c r i b i n g space e q u a l space a n g l e s space i n space e q u a l space t i m e s comma space i t s space v e l o c i t y space v e c t o r space$

PhysicsMechanics

$A space b o d y space o f space m a s s space n pi D space i s space m o v i n g space i n space a space c i r c l e space o f space r a d i u s space rightwards double arrow 2000 pi D equals 9500 space w i t h space a space c o n s tan t space s p e e d space D equals fraction numerator 9500 over denominator 2000 cross times pi end fraction equals 1.5 straight m. space$ $T h e space f o r c e space o n space t h e space b o d y space i s space space a n d space i s space d i r e c t e d space t o w a r d s space t h e space c e n t r e. space space W h a t space i s space t h e space w o r k space d o n e space b y space t h i s space f o r c e space i n space m o v i n g space t h e space b o d y space o v e r space h a l f space t h e space c i r c u m f e r e n c e space o f space t h e space 7 c i r c l e$

$A space b o d y space o f space m a s s space n pi D space i s space m o v i n g space i n space a space c i r c l e space o f space r a d i u s space rightwards double arrow 2000 pi D equals 9500 space w i t h space a space c o n s tan t space s p e e d space D equals fraction numerator 9500 over denominator 2000 cross times pi end fraction equals 1.5 straight m. space$ $T h e space f o r c e space o n space t h e space b o d y space i s space space a n d space i s space d i r e c t e d space t o w a r d s space t h e space c e n t r e. space space W h a t space i s space t h e space w o r k space d o n e space b y space t h i s space f o r c e space i n space m o v i n g space t h e space b o d y space o v e r space h a l f space t h e space c i r c u m f e r e n c e space o f space t h e space 7 c i r c l e$

PhysicsMechanics

parallel

$A space c y c l i s t space t u r n s space a r o u n d space a space c u r v e space a t space 15 space m i l e s divided by h o u r. space I f space h e space t u r n s space a t space d o u b l e space t h e space s p e e d comma space t h e space t e n d e n c y space t o space o v e r t u r n space i s$

$A space c y c l i s t space t u r n s space a r o u n d space a space c u r v e space a t space 15 space m i l e s divided by h o u r. space I f space h e space t u r n s space a t space d o u b l e space t h e space s p e e d comma space t h e space t e n d e n c y space t o space o v e r t u r n space i s$

PhysicsMechanics

A lens always forms a virtual, upright, and diminished image of an object placed in front of it. It is a ____ lens.

A lens always forms a virtual, upright, and diminished image of an object placed in front of it. It is a ____ lens.

What kind of images does a convex lens not form?

What kind of images does a convex lens not form?

parallel

The lens of a pair of spectacles used by a person is thinner in the middle and thicker towards the edges. The lens used in the spectacles is ____.

The lens of a pair of spectacles used by a person is thinner in the middle and thicker towards the edges. The lens used in the spectacles is ____.

A concave lens forms a virtual, upright, and diminished image of an object ____.

A concave lens forms a virtual, upright, and diminished image of an object ____.

A lens can only form a virtual, upright, and diminished images irrespective of the distance between the lens and the object. It is a ____ lens.

A lens can only form a virtual, upright, and diminished images irrespective of the distance between the lens and the object. It is a ____ lens.

parallel

In the setup shown in the picture below, the sun rays are focused on a paper by a magnifying glass, which results in the paper catching fire. If the magnifying glass was replaced by a concave lens, the paper does not catch fire. Why?

In the setup shown in the picture below, the sun rays are focused on a paper by a magnifying glass, which results in the paper catching fire. If the magnifying glass was replaced by a concave lens, the paper does not catch fire. Why?

The angle between the incident ray and the emergent ray is not equal to ____ degrees when the light gets refracted through a spherical lens.

The angle between the incident ray and the emergent ray is not equal to ____ degrees when the light gets refracted through a spherical lens.

Concave lenses are also called ____ lenses.

Concave lenses are also called ____ lenses.

parallel

When a parallel beam of light falls on a surface of a concave lens it the rays of light in such a way that they appear to originate from a point called .

When a parallel beam of light falls on a surface of a concave lens it the rays of light in such a way that they appear to originate from a point called .

A light ray bends on entering a .

A light ray bends on entering a .

The eye lens of a human eye is thicker in the middle as compared to the edges. It is a ___ lens.

The eye lens of a human eye is thicker in the middle as compared to the edges. It is a ___ lens.

parallel

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