Question

14.A shopper uses a force of 245 N is needed to push a loaded shopping cart down thestore aisle that is 43m long. How much work does the shopper do in pushing the cart?15.What work is done by a crane that'lifts a 618kg beam a height of 130m?AT16.A pulley system lifts a j8kg box a height of 15 m in 18 seconds. What is the power of thepulley system?17. A 15.0 kg water balloon is dropped from a balcony. If it strikes the ground with a speedof 20 m/s, how high is the balcony?3000

Answer 1

Given

Shopper: Force of 245N

43m long

Procedure

In physics, work is the energy transferred to or from an object via the application of force along a displacement. In its simplest form, it is often represented as the product of force and displacement.

$\begin{gathered} W=F\cdot d \\ W=245N\cdot43m \\ W=10535\text{ N}\cdot\text{m} \end{gathered}$

The work done is 10535 N*m (Newton meters)