A luge and its rider, with a total mass of 93 kg, emerge from a downhill track o

Question

A luge and its rider, with a total mass of 93 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 30 m/s. Assume that they stop with a constant deceleration of 2.7 m/s2.

1) What magnitude F is required for the decelerating force? in N

2) What distance d do they travel while decelerating? in m

3) What work W is done on them by the decelerating force? in kj

4) What is F for a deceleration of 5.4 m/s2? in N

5) What is d for a deceleration of 5.4 m/s2? in m

6) What is W for a deceleration of 5.4 m/s2? in kj

Explanation / Answer

1) F =m*a =93*2.7= 251.1 N.... 2) d =u^2/2*a =166.67 m... 3)W =F.d =41.850 KJ 4) F =m*a=502.2 N.... 5) d=u^2/2*a=83.34 m.. 6) W =F.d =41.853 KJ

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

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