Question

While throwing a football, Dan exerts a forward force of 50 newtons on the ball and pushes it forward a distance of 1.2 meters. How much work does he do on the football?

a.)45j
b.)60j
c.)50j
d.)50.5j

Answer 1

The work Dan does on the football is calculated by multiplying the force of 50 newtons by the distance of 1.2 meters, yielding 60 joules.

Step-by-step explanation:

When Dan throws a football exerting a forward force of 50 newtons and pushes it for a distance of 1.2 meters, we can calculate the work done using the work formula: Work = Force × Distance. In this case, Work = 50 N × 1.2 m = 60 joules (J), so the correct answer is b.) 60 J.

The work done is the energy transferred to or from an object via the application of force along a displacement. In this formula, the direction of the displacement must be the same as the direction of the force for the calculation to be correct. Therefore, we presume Dan applies the force in the same direction as the displacement of the football.