Question

Two people push a car for 3 s with a combined net force of 200N.(a) calculate the impulse provided to the car.(b)if the car has a mass of 1200kg,what will be it's change in velocity?

Answer 1

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Answer 2

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Impulse J is 600Ns

and change in velocity is 0.5m/s.

Explanation-

Force=> 200N

time =>3 sec

mass=m=>1200kg

Impulse = J= ?

Formula to be used : Impulse = Fx t

=200 x 3 = 600 Ns

B) Impulse J= m ΔV

⇒ ΔV= J/m

⇒600 Ns/1200 kg

=0.5 m/s