Please Show Work 2. A ball rolls off of a horizontal tabletop with a speed of 3.

Question

Please Show Work

2. A ball rolls off of a horizontal tabletop with a speed of 3.0 m/s, and lands on the floor a horizontal distance of 2.8 m from the edge of the table. (a) How long does it take the ball to hit the floor? (b) How high off of the floor is the table top?

4. Tom is chasing Jerry across a table surface which is 1.5 m above the floor. Jerry steps out of the way at the last moment, leaving Tom to slide right off of the table with a speed of 5.0 m/s. Let the positive-x direction point in the direction Tom was running, and the positive-y direction vertically upwards. (a) What are the x- and y-components of Tom

Explanation / Answer

2] [a] This is a projectile motion

Along the horizontal axis, V x remains constant

Vx= X/t

t= X/Vx= 2.8m/3m/s= 0.933 sec

[b] Along the vertical axis, Viy=0 m/s

a= g=9.8 m/s^2

y= Viy*t + 1/2gt2=0*0.933+1/2*9.8*0.9332=0+4.27m=4.27m

4]

(a) What are the x- and y-components of Tom

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