a.-
To reach the highest point, the final speed should be zero, so:
ANSWER
b.-
And the maximum height above the ground is:
ANSWER
c.-
The time to complete the parable movement is:
And the speed at this time is:
And the time from here to hit the ground is:
The complete time is:
ANSWER
d.-
The horizontal component of the movment is constant, so:
ANSWER
e.-
ANSWER: When the ball reaches its maximum height the speed is zero. So, from here, it starts a free fall movement until it hits the ground. So the acceleration at this time is the gravity.
I hope it helps!!
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