Register
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
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

User Jonschlinkert
by
4.6k points

1 Answer

5 votes

Answer:

10.3

Step-by-step explanation:

PE = KE

mgh = 1/2 mv2.

(.15)(9.81)(7)

User Frederik Bode
by
4.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

4.5m questions

5.9m answers

Other Questions

What is the application of physics ​
A car is moving 14.4 m/s when it hits the brakes. It slow from 78.8 m, which take 9.92s. It then accelerates at 1.83 m/s 2 for 4.50 s. What is the total displacement?
A 3.63.kgkg chihuahua charges at a speed of 3.3m/s3.3m/s. What is the magnitude of the average force needed to bring the chihuahua to a stop in 0.50s0.50s
5. How does the existence of humans compare with Earth's age?
A charge Q is uniformly spread over one surface of a very large nonconducting square elastic sheet having sides of length d. At a point P that is 1.25 cm outside the sheet, the magnitude of the electric
Link Copied!