4) A racquetball player encounters a ball coming towards him at a velocity of 22 m/s and at an angle of 5° below the horizontal. He is able to return the ball at a velocity of 30 m/s at an angle of 15° above the horizontal. The 40 gram racquetball is in contact with the racket for 0.04 s. a) Clearly draw coordinate systems for the incoming and outgoing velocity of the racquetball (there should be two). Write out the necessary transformation arrays. b) Draw an FBD of the racquetball. Compute the magnitude of the force exerted by the racquet on the ball. c) Find the angle between the force and horizontal. [Ans. to Check: 6.99°] „V½ = 30 m/s

Need only a handwritten solution only (not a typed one).

This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. The pitcher in a softball game throws a ball with an initial velocity v0 of 72 km/h at an angle α with the horizontal. Given, the height of the ball at point B is 0.68 m.   Determine the angle α.   (You must provide an answer before moving on to the next part.)   The angle α is °.?   Note: please show step by step solution. Hence, double check the solution. For correction purposes!. I require  handwritten working out please!. Kindly, please meticulously, check the image for conceptual understanding and for extra information purposes!. Also on occasions, I receive wrong answers!!. Please go through the question and working out step by step when you finish them. Appreciate your time!.

3. If a particle moves in a circular path with constant angular velocity, its radial acceleration is a. b. Zero c. -rġ² d. 2řė

How should the kinematic diagrams look for these two problems?

Please stepwise with explanation

The coordinates of a particle undergoing plane motion are? = 15 − 2?2 ? ? = 15 − 10? + ?2 ?where t is the time in seconds. Find the velocity and acceleration vectors at (a) t = 0 s; and (b) t = 5 s.

use two other solving techniques or methods to solve the problem in relative motion

A car traveling at 13.7 meters per second crashes into a barrier and stops in 0.280 meters. a. How long does it take the car to stop? Include units in your answer. More information. Hint: This is a constant acceleration problem. b. What force must be exerted on a child of mass 25.8 kilograms to stop him or her in the same time as the car? Include units in your answer. More information. Hint: This is an impulse-momentum theorem problem. c. How many times the weight of the child is this force?

4. A particle moves around a curved path of radius r = 100 m with a constant speed of v = 12 m/s. What is the magnitude and direction of the particle's acceleration?