If you are riding a bicycle and apply the brakes, but you are still moving forward,...
If you are riding a bicycle and apply the brakes, but you are still moving forward, in what direction does the angular momentum of the front tire point?
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If you are riding a bicycle and apply the brakes, but you are
still moving forward,...
You're riding a bicycle on level ground and begin to apply the brakes. This applies a...
You're riding a bicycle on level ground and begin to apply the brakes. This applies a force friction Ff to your wheel at a distance of 41.5cm from the axis. You begin to slow down at a constant rate of 3.83m/s^2. If the wheel has a radius of 0.68m and a mass of 0.91kg, what is the magnitude of Ff? Use the approximation that a bicycle wheel has a moment of inertia I=MR^2.
Why are you more stable when riding a bicycle at a faster speed? The wheels have...
Why are you more stable when riding a bicycle at a faster speed? The wheels have angular momentum It's not easier to ride at a faster speed The bike has more linear momentum You have more mass
9. You are riding your bike and the brakes fail and the only way to stop...
9. You are riding your bike and the brakes fail and the only way to stop before you end up over scenic drive is to use your leg and apply a torque to the tire to stop it in 2.0s. What torque is necessary to stop the bike if the tires radius is 0.33 with a mass of 1.5 kg and rotating at 98.7 rad/s? 10. They made some improvements to the new hover disk that exploded on you once...
A person is riding a bicycle, and its wheels have an angular velocity of 22.4 rad/s....
A person is riding a bicycle, and its wheels have an angular velocity of 22.4 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 18.0 revolutions. (a) How much time does it take for the bike to come to rest? (b) What is the angu acceleration (in rad/s) of each wheel? (a) Number Units (b) Number Units
A person is riding a bicycle, and its wheels have an angular velocity of 18.1 rad/s....
A person is riding a bicycle, and its wheels have an angular velocity of 18.1 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 17.8 revolutions. (a) How much time does it take for the bike to come to rest? (b) What is the anguar acceleration (in rad/s2) of each wheel? (a) Number i Units (b) Number i Units
A person riding a bicycle on level ground at a speed of 11 m/s throws a baseball forward at a speed of 16 m/s
A person riding a bicycle on level ground at a speed of 11 m/s throws a baseball forward at a speed of 16 m/s relative to the bicycle at angle of 35° above the horizontal (x) direction. Ignore air drag. (a) If the ball is released from a height of 2.2 m, how far does the ball travel horizontally, as measured from the spot where it is released? (b) How far apart are the bicycle and the ball when the ball lands?
2. I can get to work by either riding my bicycle riding my motorcycle, or driving...
2. I can get to work by either riding my bicycle riding my motorcycle, or driving my car. I'm notoriously bad about maintaining my 3 transportation options. From previous experience, I know there's a 30% likelihood my bicycle will have a flat tire, a 37% likelihood my motorcycle battery will be dead (so it won't start), and a 81% chance that my car will run. I'm running late and I don't have time to fix any of these possible problems...
You’re riding your bicycle first west a distance of 10.6 km, then south a distance of...
You’re riding your bicycle first west a distance of 10.6 km, then south a distance of 14.1 km. (a) In what direction does your average velocity vector point, in degrees south of west? (b) If the total trip took 10.3 minutes, what is the magnitude of this average velocity, in m/s?
You’re riding your bicycle first west a distance of 8.2 km, then south a distance of...
You’re riding your bicycle first west a distance of 8.2 km, then south a distance of 19.3 km. (a) In what direction does your average velocity vector point, in degrees south of west? (b) If the total trip took 12.7 minutes, what is the magnitude of this average velocity, in m/s?
1) You are riding a bike at a speed of 4.3 m/s. You apply the rear...
1) You are riding a bike at a speed of 4.3 m/s. You apply the rear brakes and come to a stop in 4 seconds. The moment of inertia of the rear bike wheel is 0.15 kg.m', and its radius is 0.33 m. If the rear wheel is rolling without slipping, what was the average torque exerted on it during the 4 seconds that you applied the brakes? (7 points)
Why are you more stable when riding a bicycle at a faster speed? The wheels have angular momentum It's not easier to ride at a faster speed The bike has more linear momentum You have more mass
A person is riding a bicycle, and its wheels have an angular velocity of 22.4 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 18.0 revolutions. (a) How much time does it take for the bike to come to rest? (b) What is the angu acceleration (in rad/s) of each wheel? (a) Number Units (b) Number Units
A person is riding a bicycle, and its wheels have an angular velocity of 18.1 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 17.8 revolutions. (a) How much time does it take for the bike to come to rest? (b) What is the anguar acceleration (in rad/s2) of each wheel? (a) Number i Units (b) Number i Units
2. I can get to work by either riding my bicycle riding my motorcycle, or driving my car. I'm notoriously bad about maintaining my 3 transportation options. From previous experience, I know there's a 30% likelihood my bicycle will have a flat tire, a 37% likelihood my motorcycle battery will be dead (so it won't start), and a 81% chance that my car will run. I'm running late and I don't have time to fix any of these possible problems...
1) You are riding a bike at a speed of 4.3 m/s. You apply the rear brakes and come to a stop in 4 seconds. The moment of inertia of the rear bike wheel is 0.15 kg.m', and its radius is 0.33 m. If the rear wheel is rolling without slipping, what was the average torque exerted on it during the 4 seconds that you applied the brakes? (7 points)
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