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A ball is thrown horizontally from a table at a speed of 2ms^-1. The ball falls for 3 seconds.{Acceleration due to gravity, g= 10ms^-1 ?

Determine:
a) The horizontal component of the ball's velocity at time 3 seconds
b) The vertical component of the ball's velocity at time 3 seconds

1 Answer
Mar 8, 2018

Answer:

a. #"2 m/s"#

b. #"30 m/s"#

Explanation:

a. Horizontal component of velocity will be #"2 m/s"# because there is no acceleration in this direction

b. Along vertical

Initial velocity (#u) = "0 m/s"#

Velocity after 3 seconds #= v#

#v = u + at#

#v = "0 m/s" + ("10 m/s"^2 × "3 s") = "30 m/s"#