Physics

Problem

An electric cart moves in a straight line on a horizontal track. While the cart is in motion, the motor delivers a steady power output of

1.2\,\text{kW}

. At the same time, the net force exerted by the drive wheels on the cart has a magnitude of

200\,\text{N}

and acts at an angle of

15^{\circ}

to the direction of motion. (a) Determine the speed of the cart while these conditions persist.