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A car of mass 800 kg is initially moving at 25 m/s. Calculate the force needed to bring the car to rest over a distance...

      

A car of mass 800 kg is initially moving at 25 m/s. Calculate the force needed to bring the car to rest over a distance of 20 m.

  

Answers


Wilfred
u= 25m/s, v= 0m/s

s= 20m

v2 = u2 + 2as
O= 625 + 40a
a= -15.625 m/s2
F= ma
= 800 x–16.625

= 12, 500N
Wilfykil answered the question on March 26, 2019 at 12:04


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