Projectile Motion: A projectile is fired from ground level at an angle above the horizontal on an airless planet where g = 10.0 m/s2. The initial x and y components of its velocity are 86.6 m/s and 50.0 m/s respectively. How long after firing does it take before the projectile hits the level ground?

A. 5.00 seconds
B. 10.0 seconds
C. 15.0 seconds
D. 20.0 seconds


Answer: B

Physics & Space Science

You might also like to view...

The central part of Earth's core is solid

Indicate whether the statement is true or false

Physics & Space Science

Dean teaches that the phenomenon of regelation is due to the

A) freezing point of water. B) melting point of ice. C) open-structured nature of ice crystals. D) high specific heat of water.

Physics & Space Science

Two point charges of magnitude + 4.00 ?C and - 6.00 ?C are placed along the x-axis at x = 0 cm and x = 40.0 cm, respectively

Where must a third charge, q, be placed along the x-axis so that it does not experience any net force because of the other two charges? A) 0.200 m B) 1.78 m C) - 0.180 m D) - 1.78 m E) 0.180 m

Physics & Space Science

Which of the following is an example of a true "wave", as that word is used in physics?

A) A water wave that is coming into the beach, like the waves that surfers use to surfboard on B) A stream flowing downhill over rocks C) Both of the above. D) None of the above.

Physics & Space Science