An automobile delivers 30.0 hp to its wheels when moving at a constant speed of 24.0 m/s.What is the resistance force on the automobile at this speed? (1 hp = 746 watts)
A)5.37E+5 N
B)1.21E+3 N
C)9.33E+2 N
D)3.73E+2 N
E)5.97E+2 N

Question

Quizplus · Accepted Answer

First, we need to convert 30.0 hp to watts:
30.0 hp * 746 W/hp = 22,380 W

Next, we can use the equation:
Power = Force x Velocity

Rearranging this, we get:
Force = Power / Velocity

Plugging in the values we have:
Force = 22,380 W / 24.0 m/s = 932.5 N

Therefore, the resistance force on the automobile at this speed is 932.5 N, which is choice C.

An Automobile Delivers 30