a motorcar is moving with a velocity of 108 km/h and it takes 4 s to stop right after the breaks are applied. calculate the force exerted by the brakes on the motorcar if its mass along with the passengers is 1000 kg.
Answers
Answered by
1
Answer:v=108km/h=108×1000÷3600
Time=4sec
Initial velocity =0
Mass...weight 1000kg use the formula given in the text book
Explanation:
Answered by
1
Answer:
750 N
Explanation:
Given, initial velocity= 108km/h or 30 m/s..
final velocity = 0 m/s
Time to stop= 4s
using v=u+at
0=30+4a
a= (-7.5 m/s^2)
Now,
Force= mass*acceleration
= 1000*7.5
=750 N
Hope it helps you... :D
Similar questions