1.

Calculate the force required to impact a car a velocity of `30m//s`, in 10 seconds. The mass of the car is `1500kg`

Answer» Hence, force required,F=?, final velocity, `v=30m//s`, time taken, `t =10 s`
initial velocity, u = 0, mass of car, `m = 1500kg`
As `F=ma =(m(v-u))/t =(1500(30-0))/10= 4500N`


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