EASY
Agniveer Vayu
IMPORTANT
Earn 100

When an elevator is moving upward, the apparent weight of a body inside elevator

50% studentsanswered this correctly

Important Questions on Laws of Motion

EASY
Agniveer Vayu
IMPORTANT
Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 5 - Laws of Motion>Exercise>Q 19
A bus moving on a level road with a velocity v can be stopped at a distance of x, by the application of a retarding force F. The load on the bus is increased by 25% by boarding the passengers. Now, if the bus is moving with the same speed and if the same retarding force is applied, the distance travelled by the bus before it stops is
EASY
Agniveer Vayu
IMPORTANT
Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 5 - Laws of Motion>Exercise>Q 20
A force of 10 N acts on a body of mass 0.5 kg for 0.25 s starting from rest. What is its momentum now?
EASY
Agniveer Vayu
IMPORTANT
Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 5 - Laws of Motion>Exercise>Q 1
Water from a hosepipe of radius 5 cm strikes a wall at a speed of  5 m s-1 normally and stops. The force exerted on the wall in newton is
EASY
Agniveer Vayu
IMPORTANT
Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 5 - Laws of Motion>Exercise>Q 2
A block of mass m is placed on a smooth inclined plane of inclination θ with the horizontal. The force exerted by the plane on the block has a magnitude _____.
EASY
Agniveer Vayu
IMPORTANT
Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 5 - Laws of Motion>Exercise>Q 3
Assertion: The third law of motion concludes that the forces occur in pairs of action and reaction.

Reason: The action force is more than the reaction force.
EASY
Agniveer Vayu
IMPORTANT
Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 5 - Laws of Motion>Exercise>Q 4
An air-tight cage with a parrot sitting in it is suspended from the spring balance. The parrot starts flying. The reading of the spring balance will,
EASY
Agniveer Vayu
IMPORTANT
Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 5 - Laws of Motion>Exercise>Q 5
Assertion: A block is pulled by external force F as shown in figure. In equilibrium external force and spring force on block are action and reaction pair.

Question Image

Reason: Action and reaction pair are always equal and opposite.
EASY
Agniveer Vayu
IMPORTANT
Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 5 - Laws of Motion>Exercise>Q 6
In the figure shown, a balloon is pressed against a wall. It is in equilibrium and maximum compressed state.
Question Image

F → 1 = force of balloon on hand of man; F → 2 = force of balloon on wall; F → 3 =  friction; F → 4 =  weight of balloon. Choose the correct statement.