Answer:
The question is incomplete. I will assume you intend to find the total momentum of the two carts during collision. Therefore, we can use the conservation of momentum principle to get the total momentum at a certain instant before collision.
Explanation:
The conservation of momentum principle states that the initial net momentum of two bodies before collision is equal to the final net momentum after collision.
In this case, let's denote the rolling cart as <em>'a'</em> and the stationary cart as <em>'b'</em>.
Therefore, the total momentum before collision is 11.02 Kg.m/s.
Were the pool to be one of water, then sound would travel faster than in the air of a bedroom
The incorrect answer is C
Answer: 1687.5 N
Explanation:
From the second law of motion given by Newton, Force is the rate change of momentum.
Mass of the baseball, m = 0.15 kg
Initial velocity, 
(negative because direction of initial velocity is opposite to the final velocity)
Final velocity, 
The duration of collision, 
Force, 
Hence, the value of force is 1687.5 N.
<span>When taking the reading you must see where the lower meniscus lies . The value at which the lower meniscus lies is your reading .</span>
