Imagine a rock is dropped from the top of a tall building.After 2 seconds of falling the rock is instantaneous speed In approxim
ately 20m/s
1 answer:
This is True.
Explanation:
initial velocity= Vi=0
final velocity= V
acceleration due to gravity= 9.8 m/s²
using the kinematic equation V= Vi+gt
V=0+(9.8)(2)
V= 19.6 m/s which is approximately equal to 20 m/s
Thus after 2 seconds, the instantaneous speed of the rock is approximately 20 m/s.
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There’s no picture so how r we supposed to answer it
