A projectile is projected from the origin with a velocity of 20.0 m/s at an angle of 30.0 degrees above the horizontal. The projectile lands on a roof that is 4.0 m height. What is the distance along the horizontal axis when the projectile hits the roof?
A. 25.8 m
B. 22.3 m
C. 19.4 m
D. 17.5 m
E. 15.0 m
A. 25.8 m
You might also like to view...
A magician pulls a tablecloth out from under the settings on a dinner table without disturbing the dishes. This is an example of ________.
A. Newton's First law of motion B. Newton's Second law of motion C. Newton's Third law of motion D. Kepler's laws of motion E. the Hannum-Barnum law
AC ammeters and voltmeters read:
1.peak-to-valley values 2.maximum values 3.rms values 4.average values
Stars are born in ______________________
a. molecular clouds b. atomic hydrogen clouds c. emission nebula d. reflection nebula
A very elastic rubber ball is dropped from a certain height and hits the floor with a downward speed v. Since it is so elastic, the ball bounces back with the same speed v going upward
Which of the following statements about the bounce are correct? (There could be more than one correct choice.) A) The ball had the same momentum just before and just after the bounce. B) The magnitude of the ball's momentum was the same just before and just after the bounce. C) The ball's momentum was conserved during the bounce. D) None of the above statements are correct.