Physics-
General
Easy
Question
What will be the maximum speed of a car on a road-turn of radius 30m if the coefficient of friction between the tyres and the road is 0.4?
The correct answer is:
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If the resultant of two forces 
and 
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, then the angle between these forces is
If the resultant of two forces and is , then the angle between these forces is
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A proton of mass 
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An aeroplane is flying horizontally with a velocity of 
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A small block is shot into each of the four tracks as shown below. Each of the frictionless track rises to the same height. The speed, which the block enters the tracks, is same in all cases. At the highest point of the track, normal reaction is maximum in
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If 
then which of the following is not correct
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The maximum range of a gun on horizontal terrain is 
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The horizontal range of an oblique projectile is equal to the distance through which a projectile has to fall freely from rest to acquire a velocity equal to the velocity of projection in magnitude. The angle of projection is
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Two bodies are thrown up at angles of 
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A helicopter is flying horizontally at an altitude of 2 km with a speed of 
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Physics-General
Maths-
If the sides be a, b, c then 
+ 
+ 
=
If the sides be a, b, c then + + =
Maths-General
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If the sides be a, b, c then (r + r1) tan
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Maths-General
Maths-
=
=
Maths-General
Maths-
(r1 – r) (r2 – r) (r3 – r) =
(r1 – r) (r2 – r) (r3 – r) =
Maths-General
Maths-
+
+ 
+ 
=
++ + =
Maths-General
