Select the correct answer. The formula for calculating power is work divided by time (power = work ÷ time). What are two ways of
1 answer:
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Answer:
The total momentum of the system before the collision is 5.334 kg-m/s towards left.
Explanation:
Given that,
Mass of the block A,
Speed of block A,
Mass of the block B,
Mass of block B,
Let p is the total momentum of the system before the collision. It is given by :
So, the total momentum of the system before the collision is 5.334 kg-m/s towards left. Hence, this is the required solution.
Answer:
dV/dt = 9 cubic inches per second
Explanation:
Let the height of the cylinder is h
Diameter of cylinder = height of the cylinder = h
Radius of cylinder, r = h/2
dh/dt = 3 inches /s
Volume of cylinder is given by
put r = h/2 so,
Differentiate both sides with respect to t.
Substitute the values, h = 2 inches, dh/dt = 3 inches / s
dV/dt = 9 cubic inches per second
Thus, the volume of cylinder increases by the rate of 9 cubic inches per second.