Answer: c. Neither, they have the same speed.
In both the cases, there will be work done by the gravitational force. Since, the gravitational force is a conservative force, its work done does not depend on the path as it only depends on the initial and final position of the objects. Since, the initial and final positions are same for both the objects, the work done by gravitational force will be same in both the cases.
Hence, Work done by gravitational force = Change in the kinetic energy
So, the kinetic energy will be same for both the object.
Since, the masses are same: Kinetic energy = 
Hence, the speed will also be same for both the objects.
Correct option: C
That’s actually correct!! Good luck with the test
Answer: convert the DC power produced by the modules into alternating current that can power lights, motors, and other loads.
Explanation:
Answer:
V = 0.32 m /s
Explanation:
Momentum of the man on the sledge along with sledge
= (80+8) x 10 = 880 kg. m/s When the man jumps off the sledge , the velocity of the sledge will remain intact at 10 m/s
When the sledge hits the boulder and bounces back the momentum of the sledge - boulder system will remain conserved .
change in momentum of sledge = 8 x (10 +6 )
= 128 kg m/s
Change in the momentum of boulder
= 400 V -0
= 400V
400V = 128
V = 0.32 m /s
<em>Hard </em><em>water </em><em>is </em><em>mostly </em><em>used </em><em>in </em><em>Industries </em>
