Question

7. A mover pushes a 1700 N piano up a 4-meter ramp. How much work is done
by the mover? Be sure to show work and label units
8. How much work is done when an engine generates 400 watts of power in 25
seconds? Show work and label units
Plzz guys help me out

Answer 1

$\sf{7.\:\:W=F×s}$

$\sf{:\implies{W=1700N×4m}}$

$\sf{:\implies{W=6800J}}$

$\sf{8.\:\:∵Power=work/time}$

$\sf\therefore{Work=power×time}$

$\sf{:\implies{Work=400\:watts×25\:seconds}}$

$\sf{:\implies{Work=10,000J}}$