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20 Nov 2019

A luge and its rider, with a total mass of 115 kg, emerge from adownhill track onto a horizontalstraight track with an initialspeed of 40m/s. Assume that they stop with a constant decelerationof1.8 m/s2.

(a) What magnitude F is requiredforthe decelerating force?
1 N

(b) What distance d do they travel whiledecelerating?
2 m

(c) What work W is done on them by thedeceleratingforce?
3 kJ

. (d) What is F for a deceleration of 3.6m/s2?
4 N

(e) What is d for a deceleration of 3.6m/s2?
5 m

(f) What is W for a deceleration of 3.6m/s2?
6 kJ

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Tod Thiel
Tod ThielLv2
23 Feb 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

(a) What magnitude F is required for the decelerating force?
__ N

(b) What distance d do they travel while decelerating?
__m

(c) What work W is done on them by the decelerating force?
__ kJ

(d) What is F for a deceleration of 7.0 m/s2?
__N

(e) What is d for a deceleration of 7.0 m/s2?
__m

(f) What is W for a deceleration of 7.0 m/s2?
__ kJ

*Answers in 3 sig figs please

hi,

i have 5 questions i need the complete solutions with theirfinalresults. is there anyone could help me, i wouldappreciatethat.



1)A worker pushes a sled with a force of 40 N over
a level distance of 6.0 m. If a frictional force of 24 N actsonthe
wheelbarrow in a direction opposite to that of the worker, whatnetwork is
done on the wheelbarrow?



2)
A horizontal force of 200 N is applied to a
55-kg cart across a 10-m level surface. If the cart acceleratesat2.0 m/s2,
then what is the work done by the force of friction as it actstoretard the
motion of the cart?



3)
If both mass and velocity of a ball are tripled,
the kinetic energy is increased by a factor of:

a) 9, b) 12, c) 3, d) 6



4)
A 1 200-kg automobile moving at 25 m/s has the
brakes applied with a deceleration of 8.0 m/s2. How far does thecartravel
before it stops?



5)
Samantha pushes a 50-N crate up a ramp 25.0 m in
length and inclined at 10° with the horizontal. Whatpotentialenergy
change does the crate experience?



thank you in advance

hi,
i have 5 questions i need the complete solutions with theirfinalresults. is there anyone could help me, i wouldappreciatethat.

1)A worker pushes a sled with a force of 40 N over a leveldistanceof 6.0 m. If a frictional force of 24 N acts on thewheelbarrow ina direction opposite to that of the worker, what network is doneon the wheelbarrow?

2) A horizontal force of 200 N is applied to a 55-kg cart acrossa10-m level surface. If the cart accelerates at 2.0 m/s2, thenwhatis the work done by the force of friction as it acts to retardthemotion of the cart?

3) If both mass and velocity of a ball are tripled, thekineticenergy is increased by a factor of:
a) 9, b) 12, c) 3, d) 6

4) A 1 200-kg automobile moving at 25 m/s has the brakesappliedwith a deceleration of 8.0 m/s2. How far does the car travelbeforeit stops?

5) Samantha pushes a 50-N crate up a ramp 25.0 m in lengthandinclined at 10° with the horizontal. What potential energychangedoes the crate experience?

thank you in advance

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