Question

102
2
A car is moving
with velocity
180km/h it takes 10S to stop
after the brakes are applied
calculate the force exerted by the
brakes on car if it's mass along with is riser 2000kg

​

Answer 1

Answer:

-10000N

Explanation:

u= 180km/h

v=0 (when car stopped)

t= 10 s

a=V-U/t

u=50M/s by multiplying it by 5/18

a=-50/10=-5m/s²

f=ma

f=2000×-5

=-10000N

proved by,

@jackriderkrrish_

Answer 2

Answer:

F=10000N

Explanation:

here,

u=180kmph=180x5/18=50m/s

v=0,t=10s,m=2000kg

since , we know that

a=(v-u)/t

a=(0-50)/10

a= -5m/s²

(Negative acceleration bcz brakes are applied)

now,

F=ma

F=2000x5

F=10000N