science
Grade-9
Easy
Question
A ball is thrown upwards. If the reference direction is taken to be downwards, the acceleration of the ball is ___ m/s2.
- 10
- 9.8
- 0
- -9.8
Hint:
Under the influence of gravity the object will experience acceleration due to gravity.
The correct answer is: -9.8
A ball is thrown upwards. If the reference direction is taken to be downwards, the acceleration of the ball is -9.8 m/s2.
As the direction of acceleration is in the opposite direction of motion then the acceleration will be negative.
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