A player kicks a football from ground level with an initial velocity of 27.0 m/s, 30.0° above the horizontal, as shown in the figure. Assume that forces from the air on the ball are negligible.
Find the ball's hang time (time of flight).

A-2 s
B-2.8 s
C-8.77 S
D-6 s

You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?