EASY
9th CBSE
IMPORTANT
Earn 100

A Honda City car, a Maruti Alto car, a Tata Nano car and a Mahindra Scorpio car, all are running at the same speed of under identical conditions. If all these cars are hit from behind with the same force, and they continue to move forward, the maximum acceleration will be produced in:

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Important Questions on Force and Laws of Motion

EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 2 - Force and Laws of Motion>Multiple Choice Questions (MCQs)>Q 48
The acceleration produced by a force of 5 N acting on a mass of 20 kg in ms2 is:
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 2 - Force and Laws of Motion>Multiple Choice Questions (MCQs)>Q 49
Which of the following situations involves Newton's second law of motion?
EASY
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 2 - Force and Laws of Motion>Multiple Choice Questions (MCQs)>Q 50
A fielder pulls his hands back after catching the cricket ball. This enables the fielder to:
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 2 - Force and Laws of Motion>Questions Based on High Order Thinking Skills (HOTS)>Q 51
Why are car seat-belts designed to stretch somewhat in a collision?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 2 - Force and Laws of Motion>Questions Based on High Order Thinking Skills (HOTS)>Q 52
The troops equipped to be dropped by parachutes from an aircraft are called paratroopers. Why do paratroopers roll on landing?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 2 - Force and Laws of Motion>Questions Based on High Order Thinking Skills (HOTS)>Q 53
Why would an aircraft be unable to fly on the moon?
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 2 - Force and Laws of Motion>Questions Based on High Order Thinking Skills (HOTS)>Q 54
Explain why it is possible for a small animal to fall from a considerable height without any injury being caused when it reaches the ground.
MEDIUM
9th CBSE
IMPORTANT
Science for Ninth Class Part 1 Physics>Chapter 2 - Force and Laws of Motion>Questions Based on High Order Thinking Skills (HOTS)>Q 55
A boy of mass 50 kg running at 5 ms jumps on to a 20 kg trolley travelling in the same direction at 1.5 ms. What is their common velocity?