Home I Student: kfiankood uncc.edu Class Management I Help Chapter 4-B test Begi

Question

Home I Student: kfiankood uncc.edu Class Management I Help Chapter 4-B test Begin Date: 6/3/2017 12:00:00 PM Due Date: 6/5/2017 11:59:00 PM End Date: 6/28/2017 12:59:00 AM 00%) Problem 1: Abrave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 720 N on him. The mass of the losing player plus equipment is 86 kg, and he is accelerating at 28 m/s backward. Randomized Variables f 720 N mi 86 kg m2 108 kg a 28 m/s2 D A 50% Part (a) at is the magnitude of the force of friction, in newtons, between the losing player's feet and the grass as he slides backwards? Grade Summary Potential 100% sino coso tano 7 8 9 cotano asino acoso A 4 5 6 Attempts remaining: 3 atan0 acotano sinho 1 2 3 Q5% per attempt) detailed view cosho tanho Lcotanho ODegrees Radians give up! Hints: S deduction per hint. Hints remaining: Feedback S deduction per feedback. (b) what is the magnitude of the force, winning player exerts on the ground to move forward if his mass plus equipment is 108 kg? Assume the second player has the same acceleration as the first All contrat 2017 Expert TA.

Explanation / Answer

a) Fnet= Fapplied - friction

Ma = 720 - friction

86(2.8) = 720- friction

Friction= 720-240.8

Friction = 479.2 N

B)F= MA + fexrt

= 108(2.8) + 720

= 302.4 + 720

= 1022.4 N

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

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