# physics

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why are lightweight tires preferred over lightweight frams in bicycle racing?

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1. ### physics problem

why are lightweight tires preferred over lightweight frams in bicycle racing?
2. ### physics word problem

why are lightweight tires preferred over lightweight frams in bicycle racing?
3. ### physics

A 1.0-kg mass (mA) and a 7.0-kg mass (mB) are attached to a lightweight cord that passes over a frictionless pulley. The hanging masses are free to move. Find the acceleration of the larger mass
4. ### Physics

The total area of contact between the tires of a racing bicycle and the road is 1.5 square inches. The bicycle and its rider weigh 171 pounds. What is the air pressure inside its tires?
5. ### Physics

The total area of contact between the tires of a racing bicycle and the road is 1.5 square inches. The bicycle and its rider weigh 171 pounds. What is the air pressure inside its tires?
6. ### physics

The total area of contact between the tires of a racing bicycle and the road is 1.5 square inches. The bicycle and its rider weigh 171 pounds. What is the air pressure inside its tires?
7. ### physics

A 83-kg worker clings to a lightweight rope going over a lightweight, low-friction pulley. The other end of the rope is connected to a 66-kg barrel of bricks. If the worker is initially at rest 16 m above the ground, how fast will …
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Marissa plans to use 50 sheets of paper for a scrapbook. how much thicker will the scrapbook be if she uses heavyweight instead or lightweight paper?
9. ### physics

Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If m1 = 3.8 kg and m2 = 9.2 kg, and block 2 is initially at rest 140 cm above the floor, how long does it take block 2 to reach the floor?
10. ### physics

Assuming bicycle tires are perfectly flexible and support the weight of bicycle and rider by pressure alone, calculate the total area of the tires in contact with the ground. The bicycle plus rider has a mass of 80.0 kg, and the gauge …

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