Astone is thrown with an initial speed of 11.5 m/s at an angle of 50.0 above the horizontal from the top of a 30.0-m-tall building. assume air resistance is negligible, and g = 9.8 m/s2. what is the magnitude of the horizontal displacement of the rock?

The magnitude of the horizontal displacement of the rock is 7.39 m/s.

Explanation:

Given that,

Initial speed = 11.5 m/s

Angle = 50.0

Height = 30.0 m

We need to calculate the horizontal displacement of the rock

Using formula of horizontal component

Put the value into the formula

Hence, The magnitude of the horizontal displacement of the rock is 7.39 m/s.

d) the number of neutrons plus the number of protons