Two spheres are launched horizontally from a 1.2m-high table. Sphere A is launch

Question

Two spheres are launched horizontally from a 1.2m-high table. Sphere A is launched with an intial speed of 5.0m/s. Sphere B is launched with an intial speed of 10m/s. A. What is the time for the sphere A to hit the floor? B. What is the time for the sphere B to hit the floor? C. What is the distance that sphere A travels from the edge of the table? D. What is the distance that sphere B travels from the edge of the bed? Two spheres are launched horizontally from a 1.2m-high table. Sphere A is launched with an intial speed of 5.0m/s. Sphere B is launched with an intial speed of 10m/s. A. What is the time for the sphere A to hit the floor? B. What is the time for the sphere B to hit the floor? C. What is the distance that sphere A travels from the edge of the table? D. What is the distance that sphere B travels from the edge of the bed? A. What is the time for the sphere A to hit the floor? B. What is the time for the sphere B to hit the floor? C. What is the distance that sphere A travels from the edge of the table? D. What is the distance that sphere B travels from the edge of the bed?

Explanation / Answer

H = ut + 0.5*gt^2

t = sqrt (2H / g)

t = sqrt (2*1.2 / 9.81)

t = 0.4946 sec

a) t = 0.4946 sec

b) t = 0.4946 sec

c) Ra = 0.4946*5 = 2.473 m

d) Rb = 0.4946*10 = 4.946 m

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