In a local bar, a customer slides an empty beer mug down the counter for a refil

Question

In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.18 m. The mug slides off the counter and strikes the floor 0.80 m from the base of the counter.

In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.18 m. The mug slides off the counter and strikes the floor 0.80 m from the base of the counter. h what velocity did the mug leave the counter? What was the direction of the mug's velocity just before it hit the floor? How does the x component of the velocity of the mug just before it hits the floor compare to its initial velocity? degree (below the horizontal)

Explanation / Answer

First how long does it take it to fall 1.18 m
t = ?(2h/g) = 0.495 sec
how fast was it moving to reach 0.80 m in that time
v = 0.80m / 0.495s = 1.61 m/s (a)

What was it's horizontal velocity on landing?
v = ?(2g

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