science
Grade6
Easy
Question
A car starts moving and gradually increases its speed to 20 m/s in 4 seconds. The acceleration of the car is ______ m/s2.
Hint:
acceleration = ∆v/∆t .
The correct answer is: 5
Acceleration is defined as change in velocity with change in time. As the car starts from 0 to reach speed of 20 m/s in 4 sec. It's acceleration would be 5 m/s².
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