Asked by Joachim
A person of mass 70kg slides across a slippery floor at 2m/s. If the coefficient of kinetic friction is 0.05 and that of static friction is 0.35.
Find the distance the person will slide before stopping.
Find the distance the person will slide before stopping.
Answers
Answered by
drwls
I will assume that 2 m/s is the initial speed. It decelerates after that. The deceleration rats is
a = -M*g*uk /M = 0.05*9.8 m/s^2
= -0.049 m/s^2
The static coefficient will not affect the answer.
Sliding distance = (1/2)M Vo^2/(uk*M*g)
(1/2)V^2/(uk*g)
a = -M*g*uk /M = 0.05*9.8 m/s^2
= -0.049 m/s^2
The static coefficient will not affect the answer.
Sliding distance = (1/2)M Vo^2/(uk*M*g)
(1/2)V^2/(uk*g)
Answered by
Javier
How many possible orientations are there in a bulb, battery, and wire are there that don't result in the bulb lighting? Need four of these as drawings.
Answered by
drwls
You should have posted this as a separate question, not as an addition to a previous thread.
We cannot provide drawings with answers, in any case.
If you are looking for wiring isturations that do NOT work, try leaving out the bulb, the battery, both, and leaving a disconnected wire
We cannot provide drawings with answers, in any case.
If you are looking for wiring isturations that do NOT work, try leaving out the bulb, the battery, both, and leaving a disconnected wire
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