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d.Which will travel greater distance?
e.Which will impart greater impulse if collides with a wall?

3. Define momentum. Write its SI unit.(AVERAGE)
ii) How much momentum will an object of mass 10 kg transfer to the floor if it falls
2
from a height of 5 m? (g = 10 m/s )(HOTS)
(iii) Explain how a karate player can break a pile of tiles with a single blow of his
hand.(BOARD)

4. An object of mass 50 kg is accelerated uniformly from a velocity of 4 m/s to 8
m/s in 8 s. calculate the initial and final momentum of the object. Also find the
magnitude of the force exerted on the object.(BOARD)

5. A batsman knocks back a ball straight in the direction towards the bowler without
altering its initial speed of 12 m/s. If the mass of the ball is 0.15kg, calculate the
impulse imparted to the ball? (HOTS)