Answer:D
Explanation:
It was right o khan academy
A. is the right answer since work is negative and Q which is heat in negative also
Answer:
C) 40,000 Joules
Explanation:
½(1000)10² - 10000 = 40000
Explanation:
At the instant of release there is no force but an acceleration of a, this means the ball is falling freely under the force of gravity. Then the acceleration would be due to force of gravity and acceleration a = g =9.81 m/s^2.
g= acceleration due to gravity
