Acceleration Calculations

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time. It can be positive (speeding up) or negative (decelerating).

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final Velocity (v) - Initial Velocity (u)) / Time (t)

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).

Front

What does a negative acceleration indicate?

Back

A negative acceleration indicates that an object is decelerating or slowing down.

Front

If a car's speed increases from 10 m/s to 30 m/s in 5 seconds, what is its acceleration?

Back

Acceleration = (30 m/s - 10 m/s) / 5 s = 4 m/s².

Front

How do you interpret a deceleration value of -5 m/s²?

Back

A deceleration value of -5 m/s² means the object is slowing down at a rate of 5 meters per second squared.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

Calculate the deceleration of a vehicle that goes from 80 m/s to 20 m/s in 10 seconds.

Back

Deceleration = (20 m/s - 80 m/s) / 10 s = -6 m/s².

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's acceleration is constant over time.

Front

If a motorcycle accelerates at 3 m/s² for 4 seconds from rest, what is its final speed?

Back

Final speed = Initial speed + (Acceleration × Time) = 0 + (3 m/s² × 4 s) = 12 m/s.