Question

Nicolo` works on weekends at a Slow Food Parlor. He fills a pitcher full of Cola, places it on the counter top and gives the 2.6 kg pitcher an 8.8 N forward push over a distance of 48 cm to send it to a customer at the end of the counter. Ignore friction. If the pitcher starts from rest, determine its final kinetic energy when Nicolo` is done pushing it.

Answer 1

Answer:4.22 J

Explanation:

Given

mass of pitcher $m=2.6\ kg$

Force applied  $F=8.8\ N$

distance moved $s=48\ cm$

Applying work-Energy theorem which states that work done by all the forces is equal to the change in kinetic energy of the object

Work done by force $W=F\cdot s$

W=$8.8\times 0.48 J$

change in kinetic Energy =$\frac{1}{2}mv^2-0$

$8.8\times 0.48=\Delta K.E.$

K.E.-0=$4.22$

K.E.=$4.22\ J$