Answer:
200 N
Explanation:
Given that,
A ball traveling at 15 m/s hits a bat with a force of 200 N.
We need to find the force that the bat moving at 20 m/s hit the ball with.
We know that, this probelm is based on Newton's third law of motion. The force that the ball exerting on bat should be equal to the force that the bat exerting in the ball but in opposite direction.
It would mean that the ball hits the ball with a force of 200 N. Hence, the correct option is (a).
Yes
momentum=mass x velocity
or you could rearrange the formula to find velocity = momentum/mass (you get this by dividing both sides in the original equation by mass)
you could also get that mass= momentum/velocity (you get this by rearranging both sides of the original equation by velocity)
Explanation:
Given that,
Distance between two long wires, d = 16 cm = 0.16 m
Current in one wire, 
Current in wire 2, 
The magnetic force per unit length of one wire on the other is given by the following expression as :
The current is flowing in opposite direction, the magnetic force acting on it is repulsive. Hence, this is the required solution.
Answer:
This is what you know: Force= 3150N
Distance= 75.5m
This is what you need to find: Work(W)
Use this formula: W=Fd
W= (3150N) × (75.5m)=237,825 Joules (J)
