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a) the time to the top of the trajectory (1.53s)

b) time the ball is in flight (3.06s)

c) max height of the ball (11.5m)

2. An astronaut is repairing top of her craft while docked on a strange new planet. ( ) She throws a tool down to her partner below at 2.5 m/s. Her partner catches the tool 2.86m below when it has reached a speed of 11.5m/s.

a) What is the gravitational field? (22 N/kg)

b) What is her weight if her mass is 58 kg? (1300 N)

I don't want the solutions, but can someone give me formulas I'm suppose to use for these questions? All I have in my notes is g=F/m...