6.3 Newton's Laws Motion

Calculate the acceleration of a 82 kg couch that is pushed across the floor with an unbalanced force of 21 N.

Assume that a catcher in a professional baseball game exerts a force of -65.0 N to stop the ball. If the baseball has a mass of 0.145 kg, what is its acceleration as it is being caught?

How much force is needed to accelerate a 66 kg skier at 2 m/sec 2?

What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec 2?

What is the acceleration of a 50 kg object pushed with a force of 500 newtons?

A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec 2 . What is the mass of the object?

A radio mast rises 646 m above the ground. Suppose a worker at the tope of the mast accidentally knocks a tool off the tower. If the force acting on it is 3.6 N, and its acceleration is 9.8 m/s^2 what is the tool's mass?

A 214 kg boat is sinking in the ocean The force of gravity that draws the boat down is partially offset by the buoyant force fo the water, so that the net unbalanced force on the boat is -1310 N. What is the acceleration of the boat?

A type of elevator elevator called a cage is used to raise and lower miners in a mine shaft. Suppose the cage carries a group of miners down the shift. if the unbalanced force on the cage is 60.0 N, and the mass of the loaded cage is 150 kg what is the acceleration on the cage?