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...

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

The central part of Earth's core is solid

Indicate whether the statement is true or false

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