Question

A soccer player kicks a soccer ball (m = 0.42 kg) accelerating from rest to 32.5m/s in 0.21s. Determine the force that sends soccer ball towards the goal.

Help:(

Answer 1

65 N

Step-by-step explanation:

m = Mass of ball = 0.42 kg

u = Initial velocity = 0

v = Final velocity = 32.5 m/s

a = Acceleration =
`(v-u)/(t)`

t = Time = 0.21 s

Force is given by

`F=ma`

`\Rightarrow F=m(v-u)/(t)`

`\Rightarrow F=0.42* (32.5-0)/(0.21)`

`\Rightarrow F=65\ \text{N}`

The force that sends soccer ball towards the goal is 65 N.