Answer:
Explanation: The initial velocity has two component v x and v y. The initial velocity in direction of y is given.
Answer:
The 1st Answer
Explanation:
Because kinetic energy is the energy which a body possesses by virtue of being in motion. So if the velocity of the object (cannonball in this case) decreases than so would the kinetic energy
Answer:
The centripetal acceleration of the object is
.
Explanation:
We have,
Radius of a circular path is 200 m
It takes 5 seconds to complete 10 revolutions. The angular velocity of the object is given by the rate of change of angular displacement per unit time :

The centripetal acceleration of the object is given by :

So, the centripetal acceleration of the object is
.
Answer:
no they cannot, only opposite charges attract