In a movie, a monster climbs to the top of a building 30 m above the ground and hurls a boulder downward with a speed of 25 m/s at an angle of 45° below the horizontal. how far from the base of the building does the boulder land?

22.27 m

Explanation:

initial velocity, u = 25 m/s

Angle of projection, θ = 45°

height, h = 30 m

Let t be the time taken to reach the ground.

use second equation of motion in vertical direction

t = 1.26 second

The horizontal distance = horizontal velocity x time

d = 25 Cos 45 x 1.26 = 22.27 m

magnified images possible images can be real = projected onto a screen

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2