Question

6 problems. No answers please, just explain how to go about doing them.

Answer 1

1) A table with a mass of 22 kg has the following items on it: A box (67 N), small toy (11 N), a pair of shoes (43 N), a stuffed bear (21 N), a pile of rocks (13 N), and a glass bowl (10 N). If the coefficient of static friction between the table and the floor is 0.235 how much force would be necessary to get the table moving?
2) A large box s is being pushed across the floor with a force of 648 N that is 25o above the horizontal. The mass of the box is 80 kg and the coefficient of kinetic friction is 0.13, what is the acceleration of the box?
3) A cannonball is shot of the edge of a cliff horizontally with an initial velocity of 39 m/s. If the cliff is 41 m high, how far from the bottom of the cliff will it land?
4) A ball is kicked at a velocity of 36 m/s at an angle of 45o off the ground. How far away does the it land?
5) Jane wants to measure how tall her house is. She climbs on the roof and drop a rock. The rock hits the ground at 1.06 s. How tall is her house?

6) A man is pushing a bike across the floor with a force of 285 N. If the bike has a mass of 42 kg, and the coefficient of kinetic friction is 0.18, what is the acceleration of the car?

Answer 2

Any help will be appropriately rewarded.

Answer 3

Even help with only one of the problems is greatly appreciated.