What is a BIOLOGICAL EXAMPLE of the 3rd law of motion?

The masses of the rope, spring balance, and pulley are negligible. Nick’s feet are not touching the ground. (a) Assume Nick is momentarily at rest when he stops pulling down on the rope and passes the end of the rope to another child, of weight 440 N, who is standing on the ground next to him. The rope does not break. Describe the ensuing motion. (b) Instead, assume Nick is momentarily at rest when he ties the end of the rope to a strong hook projecting from the tree trunk. Explain why this action can make the rope break.

Please solve this engineering dynamics question in Handwritten format with a free body diagram.

In a performance test, each of two cars takes 9.0 s to accelerate from rest to 27 m/s. Car A has a mass of 1431 kg, and car B has a mass of 1868 kg. Find the net average force that acts on (a) car A and (b) car B during the test.

Two blocks connected by a string are pulled across ahorizontal surface by a force applied to one of the blocks,as shown below. The coefficient of kinetic friction betweenthe blocks and the surface is 0.25. If each block has anacceleration of 2.0 m/s2 to the right, what is the magnitude F of the applied force?

A pendulum is pulled back at an angle of 20 degrees and released from rest. As the mass at the end of the pendulum swings back to its equilibrium position, which of the following variables decreases? (Select two right answers) Group of answer choices Tension in the string Velocity Acceleration Net Force

A horizontal force of 80.0 N is applied to a 5.00 kg block as the block slides a distance of 0.800 m along a horizontal floor. The coefficient of kinetic friction between the floor and the block is 0.500. If the block is initially at rest, how fast is it moving at the end of the displacement?

A car of mass 1650 kg, initially at a speed of 70km/h, crushes into a wall, if the accident lasted for 0.2 sec, what is the amount of force exerted in the car during the crash?

A very light wire is used to hang a series of 8.0-kg bricks. This wire will break if the tension in it exceeds 450 N. The bricks are hung one below the other from a hook in the ceiling using this wire, as shown in the figure. (a) How many whole bricks can be hung without breaking the wire? (b) If you add one more brick to the number found in part (a), which string will break? HHH

as a fish jump vertically out of the water, assume that only two significant forces act on it: an upward force F exerted by the tail fin and the downward force due to gravity. a force chinook salmon has a length of 1.50 m and a mass of 48.5 kg. if the fish is moving upward at 3.00 m/s as its head first breaks the surface and has an upward speed of 5.80 m/s after two-thirds of its length has left the surface, assume constant acceleration and determine the following. a. the salmon's  acceleration b. the magnitude of the force F during this interval