science
Grade-11
Easy
Question
Choose the correct free body diagram
- None of these
The correct answer is:
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Why does a horse rider falls back when the horse starts to run all of a sudden?
Why does a horse rider falls back when the horse starts to run all of a sudden?
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An owl having a weight of 2 kg is locked inside a cage of mass 4 kg. If he starts to fly, what will be the weight of the bird and cage assembly?
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Newton’s first law of motion is also known as
Newton’s first law of motion is also known as
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A horizontal force of 50 N is applied to a 5 kg plank resting on a laminate benchtop. If the friction is 10 N, calculate the acceleration of the box
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The S.I. unit of force is
The S.I. unit of force is
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The inertia of a body in motion only depends on:
The inertia of a body in motion only depends on:
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in goes around a corner?
Why do passengers get thrown to the side when the car they are driving
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A car (mass 1200 kg) applies a force of 2000 N on a trailer (mass 250kg). A constant frictional force of 200 N is acting on the trailer, and 300 N is acting on the car. Choose the correct force diagram of all the forces acting on the car.
A car (mass 1200 kg) applies a force of 2000 N on a trailer (mass 250kg). A constant frictional force of 200 N is acting on the trailer, and 300 N is acting on the car. Choose the correct force diagram of all the forces acting on the car.
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Choose the correct free body diagram
Choose the correct free body diagram
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An arrow weighing 500 g is fired by an archer towards a target at a speed of 744 m/s. The momentum of the arrow after firing is ___ kg.m/s
An arrow weighing 500 g is fired by an archer towards a target at a speed of 744 m/s. The momentum of the arrow after firing is ___ kg.m/s
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A car of mass 998 kg moving with a velocity of 108 km/h applies its brakes. As a result, its velocity comes down to 36 km/h in 5 s. Its change in momentum is ___ kg.m/s.
A car of mass 998 kg moving with a velocity of 108 km/h applies its brakes. As a result, its velocity comes down to 36 km/h in 5 s. Its change in momentum is ___ kg.m/s.
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A truck moving at a velocity of 15 m/s has a momentum of 46875 kg.m/s. Its mass is ____ kg.
A truck moving at a velocity of 15 m/s has a momentum of 46875 kg.m/s. Its mass is ____ kg.
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Peter owns a remote-control toy car, whose momentum he wants to find out. The speed and direction of motion of the toy car can be controlled using a button. What are the steps/precautions that he needs to follow while making the measurements?
a) Vary the velocity of the toy car uniformly
b) Keep the velocity of the toy car constant throughout the measurement
c) Move the toy car left and right
d) Fix the direction of motion of the toy car
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Peter owns a remote-control toy car, whose momentum he wants to find out. The speed and direction of motion of the toy car can be controlled using a button. What are the steps/precautions that he needs to follow while making the measurements?
a) Vary the velocity of the toy car uniformly
b) Keep the velocity of the toy car constant throughout the measurement
c) Move the toy car left and right
d) Fix the direction of motion of the toy car
e) Have the measuring tools like a stop-watch and measuring tape ready beforehand
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Calculate the momentum of a body of mass 5 kg moving at a velocity of 45 m/s
Calculate the momentum of a body of mass 5 kg moving at a velocity of 45 m/s
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