You Throw a Rock Horizontally Off a Cliff with a Speed

question 60

Multiple Choice

You throw a rock horizontally off a cliff with a speed of 20 m/s.Assuming no effects of air,after 2.0 s,the magnitude of the velocity of the rock is closest to

• A)28 m/s
• B)20 m/s
• C)40 m/s
• D)37 m/s