A hobbyist launches a projectile from ground level on a horizontal plain. It reaches a maximum height of 72.3 m and lands 111 m from the launch point, with no appreciable air resistance. What was the angle of launch if g = 9.80 m/s2?

A) 69.0°
B) 67.4°
C) 22.6°
D) 44.8°


A

Physics & Space Science

You might also like to view...

If a net force of 30 newtons is applied to a cart of mass 3 kg at rest, the velocity of the cart at the end of 5 meters will be ____ m/s

a. 5 b. 10 c. 12 d. 25 e. 30

Physics & Space Science

which of the following stages will the sun definitely go through as it gets older?

What will be an ideal response?

Physics & Space Science

What is the average kinetic energy (in keV) of an ion that has a temperature of 108 K?

a. 8.2 b. 13 c. 4.3 d. 16 e. 21

Physics & Space Science

The radius of a star is 6.95 × 108 m, and its rate of radiation has been measured to be 5.32 × 1026 W. Assuming that it is a perfect emitter, what is the temperature of the surface of this star? (? = 5.67 × 10-8 W/m2 ? K4 )

A) 6.27 × 103 K B) 8.25 × 103 K C) 5.78 × 107 K D) 3.93 × 107 K E) 8.87 × 103 K

Physics & Space Science