Question 29:
A car of mass 2400 kg moving with a velocity of 20 m s-1 is stopped in 10 seconds on applying brakes. Calculate the retardation and the retarding force.
Lakhmir Singh Physics Class 9
Answers
Answered by
5
M=2400*1000g
u=20m/s
v=0
t=10seconds
retardation=u-v/t
=-20/10
=-2m/s^2
u=20m/s
v=0
t=10seconds
retardation=u-v/t
=-20/10
=-2m/s^2
Answered by
0
Hey there!
Given,
Mass = 2400 kg
Inital velocity = 20 m/s
Time = 10 second
Retardation =?
Retarding force =?
Retardation = initial velocity/time
= 20/10
= 2 m/s^2
Retarding force = mass x retardation
= 2400 x 2
= 4800 N
Hope It Helps You!
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