1. Consider a child holding a helium balloon in a closed car at rest. What would the child observe the balloon to do when the car (a) accelerates from rest and (b) brakes to a stop? (The balloon does not touch the roof of the car).

Q: A 54.3 kg pole vaulter running at 10.7 m/s vaults over the bar. The acceleration of gravity is 9.81…

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: 3. A car skids to a stop on an icy road. The car has an initial velocity of 25.0 m/s and skids for a…

A: In this question we have to find the deceleration of the car. Please give positive feedback if the…

Q: 4. When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20…

A: This question has multiple question. So I have only answer first one.

Q: 1st 2nd 3rd Law Law Law 1. A balloon moves forward as it releases alr in the atmosphere. 2. An egg…

A: 1) Third law  2) First law  3)Third law  4)First law 5)second law

Q: 8. While swimming a person pushes water backward, why?

A: Introduction: Every process in the nature are the results of laws of physics. In the classical…

Q: Calculate the force applied on a 14 kg push cart if it starts from rest to a final velocity of 7 m/s…

A: Given: The mass of the cart is 14 kg. The final velocity is 7 m/s. The time duration is 4.5 s.

Q: you throw a 1.5 kg stone straight up into the air initially at rest your hand exerts a force of 151N…

A: From newton’s second law of motion.

Q: balloon is tied to the floor of a minivan. Currently, the balloon isn't going straight like normal…

A: According to our policy, we are answering only 1st question. Please post the next question as…

Q: She is standing on a spring scale in an elevator that is traveling downward, but slowing up. a) The…

A:

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: 1- An aeroplane required for take off speed of 80 km/h, the run on the ground being 100m. The mass…

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Q: A car moving at 30 km/hr skids to a stop in 15.0 m with locked brakes. How far will the car skid…

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Q: A 7-m-diameter hot air balloon that has a total mass of 350 kg is standing still in air on a…

A: The expression for the required acceleration is,

Q: 15. A zoologist is using a tranquilizer dart gun to capture (and tag) a monkey which - is hanging…

A: When tranquilizer is fired it will move under gravity and at same time monkey starts falling freely…

Q: School bus drivers are extra careful when they cross railroad tracks. They stop before they cross…

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Q: A 2.95 kg ball hangs at one end of a rope that is attached to a support on a railroad car. When the…

A:

Q: Why is it that when you are climbing up a wall, you pull down on a hold to move upward?

A: yes, From newton 3rd law of motion which state that for every action there is equal and opposite…

Q: 4. What is the other name for Newton's first law of motion? O Law of infinite motion Law of inertia…

A: Newton's first law of motion states that an object at rest remains at rest, and an object in motion…

Q: 5. A baseball is popped straight up into the air and has a hang-time of 6.25 sec. Determine the…

A: Correct option is 48.

Q: 1. Two blocks are connected via a pulley, both blocks have a mass of 10.kg. One block rests on a…

A: Given Data: The mass of the blocks is, m = 10 kg. The coefficient of friction between the block and…

Q: 33. If yo're standing on the Moon holding a pen, and you let go, the pen will A. float away B. flout…

A: "AS per our company policy we can answer only one question. Kindly repost the remaining question for…

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: Passengers on Acrophobia, a free-fall ride at Six Flags over Georgia, sit in cars are raised to the…

A: Acceleration : Acceleration is defined as the rate of change of velocity with respect to time. It is…

Q: 2. A very light taut rope is attached to a box with mass mA=3.0 kg that rests on a tabletop with us…

A: Given data: The mass of box A is mA = 3 kg. The mass of box B is mB = 1 kg. Kinetic friction uk =…

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: A car driver is driving his car on a curved track as shown in the figure, at a speed of 316.8 km per…

A:

Q: Starting from rest, a 2-kg body acquires a speed of 8 m/s in 2 seconds. The net force acting on the…

A: The expression for the acceleration is given by, a=v-ut Use the given values, a=8 m/s-02 s=4 m/s2

Q: 1. force that q2 exerts to q3 * 90000N O 22500N O 10000 N O 2.0 x 10 * 4 N O 5.1 x 10 ^-5 N O ON

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Q: acceleration of the object if the net for on a 30 kg object is 700 N

A: We know that newton's second law of motion is given as if an object moves by the force F, with the…

Q: 16. An engine rated at 5.0 × 104 watts exerts a constant force of 2.5 x 103 newtons on a vehicle.…

A: As per Bartleby guidelines I am answering only the first question(question 16).

Q: 1107 The car shown in Fig. P-1107 is just to clear the water-filled gap. Find the take-off velocity…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: When you catch a water balloon, it’s best to start with your hand in motion, moving with the…

A: The goal is to reduce the momentum of the balloon to zero, so you should apply an impulse to do…

Q: ラ 65. Three books (X, Y, and Z) rest on a table. The weight of each book is indicated. The force of…

A: Solution: given that x  =4 N y = 5 N z = 10 N

Q: 8. A 5.0-kg bucket of water is raised from a well by a rope. If the upward acceleration of the…

A:

Q: 6. When a net force acts on an object, its acceleration depends on the object's b) volume a) initial…

A: As per guidelines, question 6 is answered. For the remaining question to be answered, post that…

Q: Hippos spend much of their lives in water, but amazingly, they don’t swim. They have, like manatees,…

A: According to Question --- Given that --- density of hippo = 1030 kg/m3. mass of hippo = 1500 kg.…

Q: A ballon is being pushed upwards by the force of the hot air inside it. If the ballon has a mass of…

A:

Q: 77. A car is towing a boat on a trailer. The driver starts from rest and accelerates to a velocity…

A: According to Newton's second law, T=ma                               ...... (1) According to the…

Q: 5. How much force would be required to slow a 400 kg car from 45 m/s to 27 m/s in 3 s? *

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

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Q: 9)A 2-kg ball is moving with a constant speed of 5 m/s in a horizontal circ is the magnitude of the…

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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 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!