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A 0.15 kg ball is thrown upward and reaches a height of 7 m. What will its KE be when it falls back down, just before it hits the ground? A. 1.1J B. 1.5 J C. 10.3 J D. 15 J

A 0.15 kg ball is thrown upward and reaches a height of 7 m. What will its KE be when it falls back down, just before it hits the ground? A. 1.1J B. 1.5 J C. 10.3 J D. 15 J
asked 177k views
1 vote
A 0.15 kg ball is thrown upward and reaches a height of 7 m. What will its KE

be when it falls back down, just before it hits the ground?
A. 1.1J
B. 1.5 J
C. 10.3 J
D. 15 J

asked
User Jonschlinkert
by
8.2k points

1 Answer

5 votes

Answer:

10.3

Step-by-step explanation:

PE = KE

mgh = 1/2 mv2.

(.15)(9.81)(7)

answered
User Frederik Bode
by
8.1k points
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