Why do you fall in the forward direction when a moving bus brakes to a stop and fall backwards when it accelerates from rest?

Q: How does a skydiver reduce the force on his body while landing? decreasing his mass increasing his…

A: When a skydiver falls he accelerates downward. His velocity increases every moment as gravity acts…

Q: Some people say that the “force of inertia” (or “force of momentum”) throws the passengers forward…

A: To determine: Explain whether the force of inertia throws the passengers forward when a car brakes…

Q: A brick falls and hits your toe. The greater force of impact will be on The brick Your…

A: a brick falls and hit your toe Let the mass of brick = M Let the mass of toe = m

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

A:

Q: The acceleration of freely falling bodies is known as

A: The acceleration of freely falling bodies is known as acceleration due to gravity.

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: An unfortunate bug hits the windshield of a speeding truck. At the moment of collision, what can you…

A: There is almost no change in the velocity of car therefore at the moment of collision there is…

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: An open truck of a freight service train has a mass of 40,000 kg and is moving horizontally at 32.00…

A: Given Information:Mass of truck m1 = 40,000 kgInitial velocity V1 = 32 m/sFinal mass of the truck m2…

Q: what does friction do to motion of the skater?

A: what does friction do to motion of the skater?

Q: Explain how a cat is able to land on its feet when thrown into air?

A: The cat is able to drop on its feet by the application of principle of conservation of angular…

Q: Why is it easier to start and stop a car than a train?

A: From Newton's second law a=Fm To start or stop an object, the object has to get accelerated in the…

Q: an astronaut on the moon lifts a rock over his head and than drops it. Discuss what force acts on…

A:

Q: If you threw a rock straight up, it will come to a stop momentarily at the top of its path.  Is it…

A: No the stone will not be in equilibrium.If the stone was in equilibrium it should remain there at…

Q: Which is more difficult to stop a sailboat or a cruise ship?why?

A: A cruise and a sailboat, both stay afloat on water due to the buoyant force acting on them.

Q: An unfortunate bug splatters on the windshield of a truck. Which of the two exerts more force on…

A:

Q: A drill rod is used with a air hammer for making holes in hard rock so explosives can be placed in…

A: option D is correct .answer is 2 explanation=there is reactive impulse force after being hit by air…

Q: A scooterist moving with a speed of 36 km/h sees a child standing in the middle of the road. He…

A:

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: A car collides with a semi-truck head on with both vehicles travelling at 50mph. Which vehicle…

A: Given data: Car collides with semi-truck Required: Vehicle that exerts greater force

Q: The force of gravity on a 2-kg rock is twice as great as that on a 1-kg rock. Why then doesn’t the…

A:

Q: Two identical cars collide head on. Each car is traveling at 100 km/h. The impact force on each car…

A:

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: You stand in front of a wall and press against it with a force of 20N. the wall presses back on you…

A: 20N Thewall presses back on you With force 20N

Q: two cars moving at the same speed have a head on collision. if car A is 1600kg and car B is 800 kg,…

A:

Q: If you drop a rubber ball on floor, it bounces back up. What force acts on the ball to provide the…

A: When we drop a ball on the ground, it hits the ground with a force equal to change in momentum of…

Q: A father and his young daughter are ice skating. They faceeach other at rest and push each other,…

A:

Q: If you were to send a heavier cart towards a lighter cart, what would happen to the heavier cart’s…

A:

Q: Two people of equal mass attempt a tug-of-war with a 12-m rope while standing on frictionless ice.…

A:

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: An empty truck stops at a distance d when its driver slams on the brakes. If the truck’s mass is…

A:

Q: A 60.0-kg and a 90.0-kg skydiver jump from an airplane at an altitude of 6.00 × 103 m , both falling…

A: Given: Mass of the skydiver = 60 Kg Mass of the second skydiver = 90 Kg The altitude of the airplane…

Q: A car traveling at 60 km/h hits a bridge abutment. A passenger in the car moves forward a distance…

A:

Q: You are standing in a moving bus, facing forward, and you suddenly fall forward as the bus comes to…

A: No forces were acting on you to cause you fall.

Q: To pop cans are at rest on a stand a fire crackers place between the cans and lit the fire cracker…

A: The law of conservation of momentum states that in an isolated system the total momentum of the…

Q: A 20 g bullet is fired horizontally with the 600 m/s and 7 kg block sitting on the tabletop the…

A:

Q: Consider an unrestrained crate full of bowling balls at rest in the bed of a pickup truck. When the…

A:

Q: A cable hoists an elevator cabin upwards with an acceleration of 0.84 m/s/s. The cabin and…

A: According to Newton's second law of motion, net force acting on an object is equal to the product of…

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…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: