Thursday
February 26, 2015

Homework Help: Physics

Posted by Linda on Tuesday, November 16, 2010 at 2:20am.

A cyclist intends to cycle up a 7.5 degree hill whose vertical height is 170 m.

Assuming the mass of bicycle plus cyclist is 95 kg, calculate how much work must be done against gravity.

If each complete revolution of the pedals moves the bike 5.6 m along its path, calculate the average force that must be exerted on the pedals tangent to their circular path. Neglect work done by friction and other losses. The pedals turn in a circle of diameter 39 cm.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A cyclist starts from rest and coasts down a 6.5∘{\rm ^\circ} ...
physics - How fast must a cyclist climb a 4.0 degree hill to maintain a power ...
Physics - A cyclist and her bicycle have a combined mass of 75.0kg. If the ...
PHYSICS - Assuming a total mass of 95kg (bicycle plus rider), what must be the ...
applied physics - A cyclist and her bicycle have a combined mass75.okg. If the ...
Physics - this one is kind of hard A bicyclist can coast down a 7.0 degree hill ...
Physics - A bicyclist is coasting straight down a hill at a constant speed. The ...
Physics - A bicyclist is coasting straight down a hill at a constant speed. The ...
Physics - A cyclist approaches the bottom of a gradual hill at a speed of 14 m/s...
Physics - A cyclist approaches the bottom of a gradual hill at a speed of 20 m/s...

Members