Why are lightweight tires preferred over lightweight frames in bicycle racing?

Q: Weight of 0.2N and 0.5N are placed at the 30cm and 80cm marks respectively on a meter rule. If the…

A: Given:- Weight of 0.2N and 0.5N are placed at the 30cm and 80cm marks respectively on a meter rule.…

Q: Consider a heavy crate resting on the bed of a flatbed truck. When the truck accelerates, the crate…

A:

Q: The product of mass of a body and the acceleration produced in it equals the ___________ acting on…

A: According to Newton's second law , the force acting on an object is defined as the product of mass…

Q: 100 lb A 80 lb 80 lb Figure 1 100 lb 100 lb 200 lb

A: Given,

Q: Why is the flywheel of an engine made heavy

A: Introduction:The flywheel was made heavy due to increasing the momentum of the inertia of the wheel…

Q: Name the few methods of increasing friction.

A: Below are some ways to increase friction between surfacesCreate a “rougher” or more adhesive point…

Q: A 5.0 kg mass and a 6.5 kg mass are connected via light inextensible strings with a spring balance…

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Q: A softball and a basketball start from rest and roll down an incline. Which ball reaches the bottom…

A: A Softball has lower rotational inertia as it is smaller in size and shape A Basketball has…

Q: In order to prevent muscle contraction from misaligning bones during healing (which can cause a…

A:

Q: For serious fractures of the leg, the leg may need to have a stretching force applied to it to keep…

A: It is given that,

Q: A dime is placed at the edge of a table so it hangs over slightly. A quarter is slid horizontally on…

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Q: An 80-kg man balances the boy on a teeter-totter as shown. Note: Ignore the weight of the board.…

A:

Q: The distance between the centers of a motorcycle's wheels is 220 cm. The motorcycle's center of mass…

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Q: Why are lightweight tires preferred in bicycle racing? Discuss and explain.

A: Lightweight Tires preferred in bicycle racing

Q: The inclined surface is used in objects and the purpose of its use is for: - all of the above -…

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Q: What is the difference between sliding and rolling friction?

A: Rolling Sliding     Rolling friction takes place when an object rolls on the surface. Sliding…

Q: The objects listed are placed at the top of a ramp and roll down to the bottom without slipping.…

A: Marble is a solid sphere whereas basketball is a hallow sphere. A man hole cover is a hallow…

Q: Name the three types of calipers used on disc brakes.

A: Braking is a system that resists motion by absorbing energy, the action is accomplished by means of…

Q: Why rolling friction is less than sliding friction and Is really friction is not dependent on the…

A: Rolling friction is the force resisting the motion when a body (such as a ball, tire, or wheel)…

Q: Why Is It Difficult To Move A Bike With Its Brakes On?

A: When we try to move a bike with its brakes on, the wheels of the bike will skid to a different…

Q: A 30 kg girl and a 25 kg boy face each other on friction free rollerskates the girl pushes the boy…

A: (given) Mass (m1) of the girl = 30 kg Mass (m2) of the boy = 25 kg Speed (v2) of the boy = 1 m/s v1…

Q: friction is not experience by a ball falling down from a high building. true or false. support your…

A: This isn't false because when a ball falls from high building then an air resistance acts on ball…

Q: An object in equilibrium must not have none of these.…

A: Your answer is (1).none of these.

Q: Which of the following are conditions for equilibrium? Mark all that apply. The net momentum is…

A: At equilibrium condition, The net force is equal to zero.

Q: In order to prevent muscle contraction from misaligning bones during healing (which can cause a…

A: In order to maintain equilibrium, weight of W must be equal to weight of the leg. Therefore, W =…

Q: State two differences between centripetal and centrifugal forces.

A: The major difference between the centripetal and centrifugal is the direction of the each force. The…

Q: A 60.0 kgkg wrecking ball hangs from a uniform, heavy-duty chain of mass of 22.0 kgkg.

A:

Q: When a moving car encounters a patch of ice the brakes are applied. Why is it desirable to keep the…

A: Static friction is greater than kinetic friction because it takes more energy to move the static…

Q: When arm-wrestling, your arm is acting as: (a) a 1st-class lever. 1. (b) a 2nd-class lever. (c) a…

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Q: . The earth attracts a body of mass 2 kg on its surface with a force of (a) 9.8 N (b) 19.6 N

A: Given:- The mass of the body m = 2 kg  Find:- The force between the earth and the body   9.8 N…

Q: What would happen if there was no friction?

A: Friction is a force which opposes the motion. It is a restriction force. This force arises only when…

Q: Discuss how the shapes of different animals' bodies are designed to reduce friction

A: Required :  How the shapes of different animals' bodies are designed to reduce friction.

Q: The wings of an aeroplane are an example of a simply supported beam. Select one: True False

A: In simple supported beam, the beam is supported on its ends. On the other hand, in aeroplane the…

Q: A 6 ft board with mass of 2 kg is horizontal and attached to a swivel on one side, the other is…

A: The potential energy of the center of mass of the board is converted into kinetic energy. mgh=12mv2

Q: Car tires are sometimes “balanced” on a machine that pivots the tire and wheel about the center.…

A: Centre of gravity, in physics, an imaginary point in a body of matter where, for convenience in…

Q: When a bowling ball leaves your hand, it may not spin. But farther along the alley, it does spin.…

A: Torque is a measure of the force that can cause an object to rotate about an axis Torque is a vector…

Q: Is a large brake on a bicycle more effective than a small one?

A: When brakes are on, there is no rolling of the wheels and the wheels slide. The sliding friction is…

Q: The sketch shows a coin at the edge of a turntable. The weight of the coin is shown by the vector W.…

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Q: The position of a 0.30-kg ob x (0.30 m) cos(0.

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Q: An 80-kg man balances the boy on a teeter-totter as shown. Note: ignore the weight of the board.…

A:

Q: Carts with rubber tyres are better than those with iron tyres. Why?

A: Carts with rubber tyres are better than those with iron tyres.

Q: The normal force: * Always points straight up O Is always equal to the force of gravity Always…

A: normal force usually points straight up when the object is placed on a horizontal surface.Also, the…

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.