A 5-kg block being pushed across a table by a force P has an acceleration of 4 m

Question

A 5-kg block being pushed across a table by a force P has an acceleration of 4 m/s2 a) What is the net force acting on the block? b) If P 15 N, what is the magnitude of the frictional force acting upon the block? passenger of mass 100 kg is riding in an elevator while standing on a platform scale as shown in Figure 1. The scale only reads (Note that 1 lb- 0.453 kg 4.45 N). Using g-9.8 m/s2 a) What does the scale read in pounds (lb) when the elevator is not moving? 10. A the normal force N it exerts on the passenger

Explanation / Answer

Equation of motion, F-f=ma, where F is external force, f is frictional force, a isacceleration.

a) Net force =20N

b) If p=15 N, then Frictional force f= 5 N

10) Scale read 100*9.8=980 N =220.22 lb

10)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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