Question

a ball is thrown up vertically with a speed of 9.8m/s2 what is the speed of the ball at the highest point​

Answer 1

Answer:

Acceleration is a vector quantity ,which means it alters with

change in direction.

So, as the direction of gravitational force is downwards then any

acceleration which is in the same direction will be positive and

the one which is opposite will be negative.

And because the ball is thrown upwards it's

acceleration should be -9.8ms^(-2).

Explanation:

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