A projectile is shot horizontally at 23.4 m/s from the roof of a building 55 m tall and experiences negligible air resistance
(a) Determine the time necessary for the projectile to reach the ground below.
(b) Determine the distance from the base of the building that the projectile lands.
(c) Determine the horizontal and vertical components of the velocity just before the projectile reaches the ground.
(a) 3.4 s (b) 78 m (c) vhoriz = 23.4 m/s, vvert = 33 m/s downward
You might also like to view...
A(n) ____ is a commonly accepted set of scientific ideas and assumptions
a. theory b. paradigm c. hypothesis d. natural law e. model
Viewed from afar, the transit of Earth would cause the Sun's brightness to dim by approximately
A) 10%. B) 5%. C) 1%. D) 0.00001%. E) 0.01%.
Within a given system, the internal forces
A. are always balanced by the external forces. B. all add to zero. C. are only determined by subtracting the external forces from the net force on the system. D. determine the motion of the system. E. are measured with a gravimeter.
A cyclotron operates at 10. MHz. What magnetic field is needed to accelerate protons?
A) 0.25 T B) 0.25 Gauss C) 0.12 T D) 1.1 T E) 0.66 T