you have to know the angle of the ramp.
a. 5mph
b, c, d, e, f, cannot answer with out the slope of the ramp
g. the sketch better be constant horizontal
h. fbd is gravity on the ball down, force from the ramp normal to the ramp upwards, and the resultant of those is a net force down the ramp.
A ball is rolled up a ramp from the point B shown below, with an initial speed of 5 miles per hour. It continues up the ramp to point C before it begins to roll back down. Throughout the motion up and down the ramp, the ball maintains a constant acceleration (this is always the case). (Note: the length from point A to point B is 3ft and point B to point C is 3ft)
a. What’s the velocity of the ball when it rolls past point B, on its way back down the
ramp?
b. How much time does it take for the ball to reach point C?
c. How much time does it take for the ball to reach point B on the way back down?
d. How much time does it take for the ball to reach point A on the way back down?
e. Sketch a position vs. time graph for the motion (you may need to calculate position and
time for a few more points).
f. Sketch a velocity vs. time graph.
g. Sketch an acceleration vs. time graph.
h. Draw a FBD of the ball.
1 answer