why do you seem to lurch forward in a bus that suddenly slows? why do you seem to lurch backward when the bus picks up speed? what law applies here?

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: A person on horse's back tends to fall back if the horse starts running all of sudden. Why?

A:

Q: Why do you lurch forward in a bus that suddenly slows? Why do you lurch backward when it picks up…

A: We lurch forward in a bus that suddenly slows, as at the instant the bus slows, body still keeps…

Q: Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when…

A: As the driver applies brakes, the bus comes to rest. But, the passenger tries to maintain the…

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

A:

Q: Under what circumstances your weight becomes zero?

A: Weight is,

Q: A 75-kg petty thief wants to escape from a third-story jail window, Unfortunately, a makeshift rope…

A:

Q: Two balls are thrown simultaneously in air. The acceleration of the centre of mass of the two balls,…

A: The only force acting on the balls is the force of gravity, so the acceleration of the centre of…

Q: A racing car and a moving van are both traveling at 40 km/h. Which of the two vehicles will require…

A: Given, a racing car and a moving van are both travelling at an initial speed, v1=40 km/h. and,…

Q: When you push against a wall with your fingers, they bend because they experience a force. Identify…

A: Pushing against a wall means applying a force of an arbitrary magnitude F1 on the wall.When fingers…

Q: You are going sledding with your friends, sliding down a snowy hill. Friction can’t be ignored.…

A: Figure for the given explanation.

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: 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: Does the acceleration of the balls change with the angle of incline? How does it affect the…

A:

Q: Most often we say that force causes acceleration. But when Evan took a ride in a rocket sled at…

A: The acceleration produced in the moving body depends upon the net force applied, that is the…

Q: Why is it harder to push a steady object in comparison to push a constantly moving object?

A: For a steady object, static friction is zero. If we push it, due to Newton's Second Law there is an…

Q: person stands on a scale inside an elevator at rest. The scale read 800N. What is the person mass?

A: Reading of scale when a person is standing inside a stationary elevator = 800 N

Q: when a car brakes hard, _ is moving backward.  1. the driver inside the car 2. nothing 3. the car…

A: Given:- when a car brakes hard what is moving backward.

Q: You push a heavy car by hand. The car, in turn, pushes back with an opposite but equal force on you.…

A: No. You cannot cancel a force exerted on the car with no force exerted on you.

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: Mass of body is constant, but its weight is different at different places.Why?

A: Weight is given by,

Q: Consider a ball at rest in the middle of a toy wagon. When the wagon is pulled forward, the ball…

A: According to newtons first law a body in the state of rest or motion tends to be in the same state…

Q: Two swimmers relax close together on air mattresses in a pool. One swimmer's mass is 48 kg, and the…

A:

Q: Jack and Jill are walking with a 5.00-kg plank of wood on their heads. On top of the plank is a…

A:

Q: In tearing a paper towel or plastic bag from roll ,why is sharp jerk more effective than a slow…

A: To understand this, you can use the concept of inertia and Newton’s second law of motion. Initially,…

Q: . Since a bucket of water is “weightless” in space, would it hurt tokick the bucket? Explain.

A: A bucket in space

Q: Why does a bungee jumper feel weightless during the jump?

A: A bungee jumper feels weightlessness when he jumps the platform. When the jumper is standing on the…

Q: How does the mass of an object affect its acceleration?

A:

Q: If the mass of an object is doubled, what happens to the acceleration?

A: For a constant force, if mass gets doubled then acceleration will get half.   Mathematically: F=ma…

Q: A 30 kg girl and a 40 kg boy stand on roller skates, face one another, and push off each other. If…

A: Newton's third law of motion state that, when two objects contact, they apply forces on each other…

Q: The force exerted by gravity on a whole brick is greater than theforce exerted by gravity on half a…

A: Full and half brick

Q: It is more difficult to walk on ice than on a concrete road because  A) there is very little…

A: Introduction: The friction always acts opposite to the direction of the relative motion of two…

Q: A 50.0?? woman inside an elevator is standing on a scale. How will the acceleration of the elevator…

A: When a body is an elevator, and it is moving with some acceleration, its weight on weighing machine…

Q: If you walk along a log floating on a lake, why does the log move in the opposite direction?

A: Solution: Newton’s third law says that each action always reacts in an equal and opposite direction…

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: When a bus starts suddenly, the passengers are pushed back. This Is an example of whlch of the…

A: When bus starts suddenly, the passengers are pushed back.

Q: Why Does A Horse Pull Its Cart Harder During The First Few Steps Of Its Motion?

A: A horse has to pull the cart harder during the first few steps of his motion because the horse has…

Q: Can you push the stuck cars back down the track and have them separate on their own?

A:

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: Your empty hand is not hurt when it bangs lightly against a wall. Why does it hurt if you are…

A: From newton's 2nd law we have,

Q: the book falls faster than the paper. Why?

A: If no air resistance means in the complete vacuum when the sheet of paper and book falls, both reach…

Q: If a person standing near a moving train, there is a danger that he will fall towards it. Explain.

A: If a person standing near a moving train, there is a danger that he will fall towards it because

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

A: From Newton’s second law of motion.

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!