Question

5. A force of 100 N stops a body moving with a velocity of 20 ms-1. The force required to stop the same body when moving with 30ms-1 in the same distance is 1) 550 N 2) 225 N 3) 112.5 N 4) 65 N D​

Answer 1

Explanation:

a=

m

F

=

20

100

=5m/s

2

v=u+at

100=0+5×t

∴t=

5

100

=20sec

Answer 2

Answer:

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