Physics

Problem

A cart is pushed along a straight horizontal path by a variable horizontal force. The force increases linearly from

0\,\text{N}

x=0\,\text{m}

10\,\text{N}

x=2\,\text{m}

and then remains constant at

10\,\text{N}

until the cart reaches

x=5\,\text{m}

. What is the net work done on the cart from

x=0

x=5\,\text{m}

? a)

25\,\text{J}

40\,\text{J}

30\,\text{J}

50\,\text{J}