In this lesson, we will learn how to solve problems about projecting bodies horizontally from a point above the ground.

Students will be able to

Q1:

A particle was projected horizontally from a point 42 m above the ground at 32 m/s. Find, to one decimal place, the time it took the particle to reach the ground. Take 𝑔=9.8/ms.

Q2:

Liam threw a ball horizontally at a speed of 10.5 m/s toward a vertical target. The ball moved freely under gravity in a plane perpendicular to the target and hit the target at a height 12.1 cm below the height from which it was thrown. Taking 𝑔=9.8/ms, find the horizontal distance the ball traveled.

Q3:

A rock was thrown horizontally from the top of a tower at 20.8 m/s. It flew for 2.4 seconds before hitting the ground. Calculate the distance 𝑠 between the base of the tower and the point where the rock landed, and find the height ℎ of the tower. Take 𝑔=9.8/.ms

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