Author Question: A hockey puck slides off the edge of a horizontal platform with an initial velocity of 28.0 m/s ... (Read 77 times)

abarnes · **on:** Jul 29, 2018

A hockey puck slides off the edge of a horizontal platform with an initial velocity of 28.0 m/s horizontally in a city where the acceleration due to gravity is 9.81 m/s2. The puck experiences no significant air resistance as it falls.

The height of the platform above the ground is 2.00 m. What is the angle below the horizontal of the velocity of the puck just before it hits the ground? A) 77.2
B) 72.6
C) 12.8
D) 12.6
E) 31.8

Question 2

A cart with an initial velocity of 5.0 m/s to the right experiences a constant acceleration of 2.0 m/s2 to the right. What is the cart's displacement during the first 6.0 s of this motion?

A) 10 m
B) 55 m
C) 66 m
D) 80 m