A 12 kg block is placed on a frictionless air table. A 7 kg block is placed on top of the 12 kg block and secured with a cord. It takes a 13 N force to pull the bottom block from under the top block. The smaller block is then placed back on the larger block and untied. a. Determine the maximum force that can be applied to the bottom block in order for the two blocks to remain together. b. What is their resulting acceleration?

A man pushes a 92 kg crate with 272 N of force.. The crate experiences a force of friction of 25 N. a. What is the weight of the crate? b. What is the normal force? c. What is the net force acting on the crate? d. What is the acceleration of the crate?

Please help with physics problem

Eric has a mass of 60 kg. He is standing on a scale in an elevator that is accelerating downward at 1.7 m/s2. What is the approximate reading on the scale?A. 0 N              B. 400 N              C. 500 N             D. 600 N

In t-ball, young players use a bat to hit a stationary ball off a stand. The 140 g ball has about the same mass as a baseball, but  it is larger and softer. In one hit, the ball leaves the bat at 12 m/s after being in contact with the bat for 2.0 ms. Assume constant acceleration during the hit. a. What is the acceleration of the ball? b. What is the net force on the ball during the hit?

Starting from rest, a 150 kg body experiences a force of 100 newtons acting on it in a direction parallel to the positive x-axis and a force of 150 newtons acting at 55° with respect to the positive x-axis. a. What is the net force acting on the body?  Include direction. b. What is the acceleration of the body? c. What velocity does it reach after 5 seconds?

The net external force on the 24 kg mower is stated to be 51N. a. If the force of friction opposing the motion is 24N, what force F in newtons is the person exerting on the mower? b. Suppose the mower is moving at 1.5 m/s when the force F is removed. How far will the mower go before stopping?

An adventurous Bravestone must cross a river and starts running toward it. As he runs, he notices a rope hanging from a tree limb. He grabs the rope and swings. Which of the following statement is true as Bravestone reaches the lowest point of the swing?   a. the tension in the rope is equal to his mass times his acceleration.   b. the tension in the rope is greater than his weight.   c. his acceleration is downward at .    d. the tension in the rope is equal to his weight.

mi m₂ It is released from rest with m₁ = 12.0 kg and m₂ = 10.0 kg. a. Draw two free body diagrams. b. Solve for the acceleration. c. Then solve for the tension in the string

A 20,000 kg rocket has a rocket motor that generates 3.0 x 105 N of thrust.a. What is the rocket’s initial upward acceleration?b. At an altitude of 5.0 km the rocket’s acceleration hasincreased to 6.0 m/s2. What mass of fuel has it burned?