If some one could solve 53 I would be very grateful :) Boxing gloves are padded

Question

If some one could solve 53 I would be very grateful :) Boxing gloves are padded to lessen the force of a blow. (a) Calculate the force exerted by a boxing glove on an opponent's face, if the glove and face compress 7.50 am during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) Calculate the force exerted by an identical blow in the gory old days when no gloves were used, and the knuckles and slide face would compress only 2.00 cm. Assume the change in a ho mass by removing the glove is negligible. (c) Discuss the magnitude of the force with glove on. Does it seem high enough to cause damage even though it is lower than the force with no glove? Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the track to accelerate from 2.00 to 8.00 m/s in a distance of 25.0 m, at G if he encounters a headwind that exerts an average force of the 30.0 N against him. A 5.0-kg box has an acceleration of 2.0 m/s^2 when it is pulled by a horizontal force across a surface with mu_K = 0.50. Find the work done over a distance of 10 cm by (a) the horizontal force, (b) the frictional force, and (c) the net force. (d) What is the change in kinetic energy of the box? A constant 10-N horizontal force is applied to a 20-kg cart at rest on a level floor. If friction is negligible, what is onto the speed of the cart when it has been pushed 8.0 m?

Explanation / Answer

using the newton's motion equation we have

v^2 - u^2 =2aS

8^2 - 2^2 = 2*a*25

a = 1.2 m/s2

F - F(h) = ma

F - 30 = 60*1.2

F = 102 N

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.