Advertisements
Advertisements
Question
Name the physical entity used for quantifying the motion of a body.
Advertisements
Solution
Momentum is used for quantifying the motion of body.
APPEARS IN
RELATED QUESTIONS
A block of mass 15 kg is placed on a long trolley. The coefficient of static friction between the block and the trolley is 0.18. The trolley accelerates from rest with 0.5 ms–2 for 20 s and then moves with uniform velocity. Discuss the motion of the block as viewed by (a) a stationary observer on the ground, (b) an observer moving with the trolley.
A block of mass 0.2 kg is suspended from the ceiling by a light string. A second block of mass 0.3 kg is suspended from the first block by another string. Find the tensions in the two strings. Take g = 10 m/s2.
Two blocks A and B of mass mA and mB , respectively, are kept in contact on a frictionless table. The experimenter pushes block A from behind, so that the blocks accelerate. If block A exerts force F on block B, what is the force exerted by the experimenter on block A?
Write the mathematical form of Newton's second law of motion. State the conditions if any.
A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate : The magnitude of the force
Calculate the velocity of a body of mass 0.5 kg, when it has a linear momentum of 5 Ns.
State two factors which determine the momentum of a body.
Use Newton's second law to explain the following:
We always prefer to land on sand instead of hard floor while taking a high jump.
A stone is dropped from a cliff 98 m high.
How long will it take to fall to the foot of the cliff?
How does moving your hand backward while catching a cricket ball reduce pain?
