Question

A force of 20 newtons is exerted on a cart for 10 seconds. For what period of time must a 50 newton force act on the cart to produce the same impulse?

Answer 1

`"Force must be exerted for 5 seconds"`

Explanation:

`"Impulse"=F*Delta t`

`F:"Force"`
`Delta t=10 " period of time"`

`"Impulse"=20*10=200 " "N*s`

`200=50*Delta t`

`Delta t=200/50`

`Delta t=4 " "s`