You are a detective investigating why someone was hit on the head by a falling flowerpot. One piece of evidence is a smartphone video taken in a 4th-floor apartment, which happened to capture the flowerpot as it fell past a window. In a span of 8 frames (captured at 30 frames per second), the flowerpot falls 0.84 of the height of the window. You visit the apartment and measure the window to be 1.27 m tall. Required:
Assume the flowerpot was dropped from rest. How high above the window was the flowerpot when it was dropped?

0.37 m

Explanation:

Given :

Window height, = 1.27 m

The flowerpot falls 0.84 m off the window height, i.e.

= (1.27 x 0.84 ) m in a time span of   seconds.

Assuming that the speed of the pot just above the window is v then,

m/s

Initially the pot was dropped from rest. So,  u = 0.

If it has fallen from a height of h above the window then,

h = 0.37 m

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

no simpler subs form complex ones. synthesise = make