At one instant a heavy object in air is moving upward at 50 m/s. One second later its speed is approximately
A)40 m/s.
B)50 m/s.
C)55 m/s.
D)60 m/s.

Name: At one instant a heavy object in air is moving upward at 50 m/s. One second later its speed is approximately A)40 m/s. B)50 m/s. C)55 m/s. D)60 m/s.
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Question

Quizplus · Accepted Answer

The object is moving upward against gravity, which decelerates it at approximately 9.8 m/s^2. After one second, its speed would decrease by about 9.8 m/s from 50 m/s, making it approximately 40 m/s.

At One Instant a Heavy Object in Air Is Moving