Question

A force of 343.8 N is used to push a car 38.5 m horizontally in 4.86 s. Calculate the power developed.

Answer 1

Important Formulas:

`w=Fd`

`p=(w)/(t)`

w = work (Measured in Joules)

F = Force (Measured in Newtons)

d = distance (Measured in meters)

p = power (Measured in watts)

t = time (measured in seconds)

______________________________

Given:

`f=343.8N`

`d=38.5m`

`t=4.86s`

`p=?`

______________________________

Finding Work:

`w=Fd`

`w=(343.8)(38.5)`

`w=13236.3J`

______________________________

Finding Power:

`p=(w)/(t)`

`p=(13236.3)/(4.86)`

`\fbox{p = 2723.52 watts}`