Abaseball is hit high and far. which of the following statements is true? at the highest point,

a. the magnitude of the velocity is zero.
b. none of the above are true.
c. the magnitude of the velocity is the slowest.
d. more than one of the above is true.
e. the magnitude of the acceleration is zero

option C

Explanation:

When the baseball is hit high and far it has some horizontal velocity at the highest point so option an i.e. velocity at the highest point is eliminated.

the baseball act as a projectile at the highest point so, there is always downward acceleration acting on the body. so, option e and d is eliminated.

At the highest point, the vertical velocity is zero and neglecting the air resistance we can say that the velocity of the body is slowest.

Hence, the correct answer is option C

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000