Question

the force required to stop a car of mass 800 kg moving at a speed of 2m/s over a distance of 25 m in 2.5 s is​

Answer 1

Answer:

Given, u=0 ms

−1

,v=20 ms

−1

Mass of car =800 kg,s=25 m

We know that, distance covered,

s=(

2

u+v

)t

⇒25=(

2

0+20

)t

=

10

25

=2.5s.