Author Question: An object approaches the bottom of a ramp, point A. It goes up the ramp and turns around at point B, ... (Read 100 times)

gonzo233 · **on:** Jul 29, 2018

An object approaches the bottom of a ramp, point A. It goes up the ramp and turns around at point B, which is 40.0 m above A. The ramp makes an angle of 30.0 with the horizontal.

What is the speed of the object at point A? Neglect friction and use g = 10.0 m/s2. A) 23.8 m/s
B) 28.3 m/s
C) 10.0 m/s
D) 11.6 m/s
E) 15.3 m/s

Question 2

An object is moving with constant non-zero acceleration in the +x-axis. The velocity versus time graph of this object is

A) a horizontal straight line.
B) a vertical straight line.
C) a straight line making an angle with the time axis.
D) a parabolic curve.
E) a hyperbolic curve.