l LIMe Bu Date:1/6/2018 12:01:00 AM -Due Date: 9/1272018 11 59.00 PM End Date: 1

Question

l LIMe Bu Date:1/6/2018 12:01:00 AM -Due Date: 9/1272018 11 59.00 PM End Date: 1231/20 (7%) Problem 10: There are two balls. The first ball is thrown upward with initial velocity vi = 3.4 m/s at h = 5 m above the ground. After 5 s, the other ball is thrown downward with initial velocity of -v, from the same height. Both of the balls move until they hit the ground. V. V. Otheex 8% Part (a) Defining the positive direction going upward, what is the acceleration of these two balls in m s2? Grade Su Potential tan() | | ( sin0 cotanO asin acos0 atan0 acotan sinh0 cosh0 Attempts re per att detailed vie 4 56 tanh() | cotanho l-+ | - | 0 ODegrees Radians Hint I give up ng: 1 Feedback: 0% deduction per feedback. per hint. Hints

Explanation / Answer

here,

intial speed of 1 , u1 = 3.4 m/s

initial speed of 2 , u2 = 2.3 m/s

h = 5 m

time taken , t = 5 s

when the ball is in air

ignoring air resistance

the accelration of the two balls , a = accelration due to gravity

a = g = 9.81 m/s^2 downwards = - 9.81 m/s^2

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