MEDIUM
9th Foundation
IMPORTANT
Earn 100

A large truck and a car, both moving with a velocity of magnitude v, have a head-on collision and both of them come to halt after that. If the collision lasts for 10 s then

(i) The car will experience the greater force of impact exerted by the truck
(ii) The truck will experience the greater momentum change
(iii) Car will experience the greater average acceleration than truck.

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Important Questions on Force and Laws of Motion

MEDIUM
9th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 9>Chapter 9 - Force and Laws of Motion>EXERCISES>Q 19

Three identical bodies, each of mass m, are pushed by a force F on a frictionless table as shown in figure.

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EASY
9th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 9>Chapter 9 - Force and Laws of Motion>EXERCISES>Q 20
Two blocks made of different metals identical in shape and size are acted upon by equal forces which causes them to slide on a horizontal surface. The acceleration of the second block is found to 10 times that of the first. What is the ratio of mass of the second to the first?