Can an object move along a curved path if no force acts on it? Defend your answer.

Q: Why does a child in a wagon seem to fall back when you give the wagon a sharp pull forward? Explain…

A: The law of inertia is another name for Newton's first law of motion. Unless a net external force is…

Q: Why does a car nose up when accelerating and nose down when braking?

A: When the car is accelerating, the road traction forces act in the forward direction on the tires of…

Q: What can you say about the acceleration of gravity acting on the stone and the feather?

A: The acceleration of gravity is the acceleration by which the body falls at the center of the earth.

Q: If forces always occur in pairs that are equal and opposite, why don’t they always cancel?

A: The third law of motion states that for every action there is an equal and opposite reaction but…

Q: A tennis ball is hit across the court, raising up and coming back down. Which of the following…

A: Given: A tennis ball is hit across the court, raising up and coming back down.

Q: A clothesline always sags a little, even if nothing hangs from it.Explain.

A: A clothline sags

Q: The force of gravity from the earth on the sun acts

A:

Q: What is the role of mass on finding the net acceleration of an object rolling from the top of an…

A: Given:-   an object rolling from the top of an inclined plane.  Find:-  What is the role of mass in…

Q: Is it possible to move in a curved path in the absence of the force? Defend your answer.

A: It is not possible to move in a curved path in the absence of force. According to Newton’s first law…

Q: How is the swimmer jumping into water from a height be able to make loop in air?

A: Step 1The swimmer is using the conservation of angular momentum concept to do the trick.

Q: Place a heavy book on a table and the table pushes up on the book. Why doesn’t this upward push…

A:

Q: Give an example of the product of inertia?

A:

Q: What happens if there is no Friction?

A: Friction is between solid surface, layers of fluid, and also between any two materials. If there is…

Q: A parachute descends slowly. Why?

A: When any object falls from a height, gravity acts on it, which pulled it downwards, but the air…

Q: The weight compound towards the inclined surface of a body of mass (5.6 kg) on ​​a surface inclined…

A: Given data *The given body of mass is m = 5.6 kg *The given angle is θ=180 *The given acceleration…

Q: When moving along a curved path, a motorbike driver, Select one: O a. Leans outwards O b. Leans…

A: When a motorbike driver is moving on a curved path, the centripetal force acts on the driver.

Q: What is the total force acting on the body?

A: The solution for this question has been solved below...

Q: It is easier to pull than to push a lawn roller, why?

A:

Q: kg, which slides down the slope without friction. What force does the scale show as the log is…

A:

Q: Why does a child in a wagon seem to fall back when you give the wagon a sharp pull forward?

A: To find: The reason of falling child in backward direction.

Q: Does the acceleration increase or decrease as the mass increases?

A: From newton 2nd Law of motion F= ma a=F/m from above acceleration is inversely proportional to the…

Q: Will a real cart gain speed faster going down a given ramp than it loses speed on the way up, or the…

A: Let F= force applied on both forces. fk is the kinetic friction

Q: why do you seem to lurch forward in a bus that suddenly slows? why do you seem to lurch backward…

A: We lurch forward in bus that suddenly slows , this is because of inertia of motion . Inertia of body…

Q: Why is the normal force no longer equal to the weight of all things on an incline?

A: Lets take it from basis Newton third law states "for every force, there is equal and opposite…

Q: The inertia of an object is called?

A: Inertia

Q: Do heavier objects fall more slowly than lighter objects?

A: Heavier things have a greater gravitational force, and lighter things have a lesser gravitational…

Q: Start a ball rolling down a bowling alley and you'll find that it moves slightly slower with time.…

A: It does not violate newton law of inertia.

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: Do you feel yourself thrown to either side when you negotiate a curve that is ideally banked for…

A:

Q: Which will roll down an incline faster a can of water or a can of ice?

A: ofcourse can of water because a can of water has less rotational inertia than the can of ice since…

Q: Why we tend to fall forward when a car stops suddenly?

A: When the car is moving, our upper part is at rest but the lower part is moving in the forward…

Q: Why does a child in a wagon seem to fall backward whenyou give the wagon a sharp pull forward?

A:

Q: A 2,000-kg car is sitting at rest in a parking lot. A bike and rider with a total mass of 60 kg are…

A: The inertia of an object tends to cause the object to resist any change in its motion. Mass is the…

Q: A snowboarder flies off a ramp and is in midair. Is the snowboarder weightless currently? Why or why…

A: The phenomenon of weightlessness occurs when there is no force affecting the body. When a…

Q: How does inertia play into most aspects of life ?

A:

Q: of an object is the point at which the entire weight of the object may be considered concentrated *…

A: Here given an incomplete statement and we have to complete the sentence by filling the blank space…

Q: When a mass attached with string is revolved in vertical circle then at highest point tension in…

A: Consider a string of mass m revolved in a vertical circle such that the tension acting on the sting…

Q: While catching a cricket ball . the player lowers his hand . Why?

A: From Newton’s second law of motion.

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.