Work Energy And Power Question 52

Question: Tripling the speed of the motor car multiplies the distance needed for stopping it by [NCERT 1978]

Options:

A) 3

B) 6

C) 9

D) Some other number

Show Answer

Answer:

Correct Answer: C

Solution:

$ s\propto u^{2} $ i.e. if speed becomes three times then distance needed for stopping will be nine times.



NCERT Chapter Video Solution

Dual Pane