Question

A cyclist accelerates from 0 m/s to 8 m/s in 3 seconds. What is his acceleration? Is this acceleration higher than that of a car which accelerates from 0 to 30 m/s in 8 seconds ? Please help me ..

Answer 1

Acceleration of the cyclist: 2.67 m/s²

The acceleration of the cyclist is lower than that of the car.

Step-by-step explanation:

• Acceleration refers to the rate of change in velocity of a body in motion.
• It is calculated by; dividing the change in velocity by time.
• Acceleration = (Final velocity - Initial velocity) ÷ time

In this case;

For the cyclist;

Initial velocity = 0 m/s

Final velocity = 8 m/s

time = 3 seconds

Therefore;

Acceleration = (8 m/s - 0 m/s) ÷ 3 seconds

= 2.67 m/s²

For the car;

• Initial velocity = 0 m/s
• Final velocity = 30 m/s
• Time = 8 seconds

Therefore;

Acceleration = ( 30 m/s - 0 m/s) ÷ 8 seconds

= 3.75 m/s²

The acceleration of the cyclist is lower than that of the car.