Calculate the average acceleration of a car that changes speed from 0 m/s to 15 m/s in 5 seconds

3 m/s^2

Explanation:

Average acceleration of car = ?

Initial velocity = 0 m/s

Final velocity = 15 m/s

Time taken = 5 seconds

Recall that acceleration is the rate of change of velocity per unit time

i.e Acceleration = (Final velocity - Initial velocity) / Time

Acceleration = (15m/s - 0m/s) / 5seconds

= 15m/s / 5 sec

= 3 m/s^2

Thus, the average acceleration of the car is 3 m/s^2

c) up is the direction the magnetic force is acting on the charge.

so easy. just google the electromagnetic waves and it’ll pop up.