If you lower the window on a car while moving, an empty plastic bag can sometimes fly out the window. Why does this happen?

Q: A superball is dropped from a height of 100 feet. The elasticity of the ball is such that it…

A: 1. Before the ball hits the ground for the first time, it travels the distance (say d) of 100 ft.…

Q: dropping an elephant and a mouse from a tall building, the mouse survived the fall but the elephant…

A: A mouse and an elephant dropped from same height.  We have to explain as to why mouse survived the…

Q: 1) A marble launcher fires a marble at an angle of 50° to the horizontal with an initial velocity of…

A: Answer:-  Given  Initial velocity (u) = 6.2 m/s  Angle (A) = 50o  Acceleration due to gravity (g) =…

Q: In a switchyard, a 24,000 kg railroad car moving 1.8 m/s collides with a stationary 17,000 kg car.…

A:

Q: Which has a larger momentum: A baseball is thrown at 30 miles per hour or a person on a bike riding…

A:

Q: A brand new semi truck is traveling down the road at 65 mph (29 m/s) going North. A strong gust of…

A: The objective of the question is to determine whether the truck will topple over due to the wind…

Q: A rubber ball (4 kg) falls from a height of 20 m and collides elastically with the floor.  What is…

A: The law of conservation of energy states that the total energy of the rubber ball  remains constant.

Q: Someone on YouTube mentions that the mantis shrimp can hit with a force of “10,000 g”s. What's…

A: The given statement  from the question is: Someone on YouTube mentions that the mantis shrimp can…

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: Conservation of energy.

Q: A 5-kg ice collides with similar chunk of ice initially at rest. If the first ice is moving with a…

A:

Q: A machine gun is fired at a steel plate. Is the force on the plate from the bullet impact greater if…

A: The given situation is described by using conservation of momentum and the fact that change in…

Q: A 50-kg swimmer dives horizontally off a 450-kg raft. If the diver's speed immediately after leaving…

A: Given value--- mass of swimmer = 50 kg. mass of raft = 450 kg. speed of swimmer = 3 m/s. We have…

Q: In a research facility, a person lies on a horizontal platform which floats on a film of air. When…

A: This question is based on law of conservation of linear momentum. For an isolated system linear…

Q: A 30-gram bullet initially travelling at 500 m/s penetrates 12 cm into a wooden block. What average…

A: Given-           mass (m) = 30g           velocity(v) = 500 m/s            penetration (D) = 12 cm

Q: A 124 km/h wind strikes a 49 m wide by 71 m high skyscraper and brings it to a halt. When air has a…

A: Concept: To Determine the average wind force on the building we will use the Formula…

Q: The center of mass only lies on the x-axis O True False

A: Center of mass is define as a distribution of mass in space in the unique point where the weighted…

Q: An airplane flying 500 m above ground level at 1000 m/s, releases a block. How far on the ground…

A: (a) 10000 m

Q: A 63-kg canoeist stands in the middle of her 22-kg canoe.The canoe is 3.0 m long, and the end that…

A:

Q: Two balls collide and bounce off each other. The 500-g ball's initial velocity is 20 m/s while the…

A:

Q: A paint-ball gun fires 65 g paint balls at 68 m/s. How many rounds per minute must be fired in…

A: Given data:  Mass of paint ball (m) = 65 g = 0.065 kg Velocity (v) = 68 m/s Time (t) = 1 minute = 60…

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: Given:- Mass m=4 kg Height h=50 m Collision is elastic. Let v be the velocity of the ball just…

Q: 8. Hannah and her friends go fishing in her 1.20m^3 rowboat, which has a mass of 100 kg. How many…

A: Mass of the boat = 100 kg Mass of the person = 60 Kg The volume of the boat = 1.20 m3

Q: In a croquet shot a pair of touching balls are hit sharply by the mallet in the direction of the…

A: Step 1: Before both  are in rest  , so initial momentum is zero .  Step 2: Now the balls are hitted…

Q: The third question: A person wanted to push a block made of steel with a mass of 800 kg to the top…

A: Given, mass of steel block m = 800  Kg Acceleration on the block a = 0.66 m/s  Height h = 10 m   We…

Q: A 12,000 lb truck with a speed of 50 mph is heading due east has a head-on collision with a 4000 lb…

A: Given, mtruck=12,000 lbvtruck=50 mph eastmcar=4000 lbvcar=65 mph west

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A:

Q: You have been chosen as the test subject for the newest attraction at Disney. This attraction is a…

A:

Q: s about to be sw ne only way was 41.

A:

Q: Which of the following statements ARE correct? O Momentum is always conserved O Momentum is…

A: Required : All true statements

Q: A brand new semi truck is traveling down the road at 65 mph (29 m/s) going North. A strong gust of…

A: The objective of the question is to determine whether the truck will topple over due to the wind…

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: Given: Mass of ball is m=4 kg Initial height is h=50 m Collision is elastic. Note: 1 N=1 kg·m/s2 1…

Q: A paint-ball gun fires 65 g paint balls at 68 m/s. How many rounds per minute must be fired in order…

A:

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: This is a question regarding elastic collision, the conservation of momentum and the motion of a…

Q: What is condition for conservation of momentum in a system? The total initial momentum must be zero…

A:

Q: You have been chosen as the test subject for the newest attraction at Disney. This attraction is a…

A:

Q: "A 200 gram ball "A follows another ball "B of the same mass at a speed of 5 m/s. Ball "B is…

A: From conservation of momentum,…

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A:

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: Given that, A rubber ball falls from some height and collides with the floor mass of the rubber ball…

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A:

Q: Take two different balls that can bounce (a tennis ball and a basketball combination works great)…

A: To justify the behaviour of the system when a tennis ball and a basketball ball bounce back after…

Q: A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is…

A: Given: The mass of the ball is m = 4 kg The height at which the ball is dropped is h = 50 m The…

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”