A 5.2 kg toy race car can move along an x axis. The figure below gives F x of th

Question

A 5.2 kg toy race car can move along an x axis. The figure below gives Fx of the force acting on the car, which begins at rest at time t = 0. (The vertical axis is marked in increments of 2.5 N.)

A 5.2 kg toy race car can move along an x axis. The figure below gives Fx of the force acting on the car, which begins at rest at time t = 0. (The vertical axis is marked in increments of 2.5 N.) What is the momentum of the car at t = 3.0 s? What is the momentum of the car at t = 9.0 s? What is the car's velocity at t = 7.0 s?

Explanation / Answer

a)F=p/t

25=p/3

p=75

b)p=0

c)p(at 7)=-12.5*7=-87.5

v=-87.5/5.2= -16.826m/s

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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