Physics, asked by nabila7915, 1 year ago

Calculate the force required to be done to stop a car of 1500 kg moving at a velocity of 60 km/h

Answers

Answered by zishan174
4
m=1500kg

u= 60km/h =60* 5/18 = 50/3m/s

v =0m/s

w = change in its KE.

initial KE =1/2 mu2

final KE=1/2mv²

w = 1/2mv2  - 1/2 mu2

  =1/2m(v2-u2)

= 1/2 * 15000{0- (50/3)2}

=  -208333.33J
hope this helps☺☺
Answered by duragpalsingh
3

Hey there!

Given,

Mass of car (m) = 1500 kg

Velocity of car ( v) = 60 km/h = 60 * 5/18 m/s

Work done = ?

Here,

Work done = Kinetic Energy

                  = 1/2 * mv²

                  = 1/2 * 1500 * 60 * (5/18) J

                  = 20.8 × 10⁴ J (←Answer)

Hope It Helps You!

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