1. How far away will a ball land when thrown from a hill 70 m high at a 45 angle from the horizontal at an initial velocity of 9 m/s? 2. How long will it take for the ball in problem 1 to fall to the ground? Remember the pull of gravity is (-9.8 m/s)

3. What is the maximum height reached by the object?

Explanation:

= Height from where the ball is thrown =

= Angle of inclination =

= Initial velocity =

= Acceleration due to gravity =

Range of projectile is given by

The ball will land away.

Time of flight is given by

The time the ball will stay in the air is

Maximum height is given by

Maximum height the object will reach above the ground is .

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//