Suppose you jump from the cliffs of Acapulco and perform a perfectswan dive. As you fall, you exert an upward force on the Earth equalin magnitude to the downward force the Earth exerts on you. Why,then, does it seem that you are the one doing all the accelerating?Since the forces are the same, why aren’t the accelerations?

Q: A weightlifter raises a barbell with an acceleration of 2 m/s². If the ne A weightlifter raises a…

A: ques: given: a=2 m/s2Fnet=316 N

Q: Your absent-minded instructor accidentally placed a 15.0-kg box on top of a frictionless incline.…

A:

Q: On Mars, the acceleration due to gravity is 3.77 m/s2. How far would a 27 g rock fall from rest in…

A: Given Data: The gravitational acceleration is: g=3.77 m/s2 The mass of the rock is: m=27 g=27×10-3…

Q: 120-lb person stands on a bathroom spring scale while riding in an elevator. If the eleva- tor has…

A:

Q: A 30 N box is pushed from rest in a straight line by a force F, as shown in the figure, making it…

A: Given:- The weight of the object = 30 N  The acceleration of the object is =2.2 m/s2 The pushing…

Q: a 1000 kg car is traveling down a 25 degree slope. at the instant the speed is 13 m/s,the driver…

A:

Q: A skydiver of mass 80.0 kg jumps from a slow-moving aircraft and reaches a terminal speed of 50.0…

A: solution: given that m = 80 kg terminal speed of 50.0 m/s a) What is her acceleration when her speed…

Q: f I were to fart, how much force would my fart need to exert to launch me 10 feet in the air? For…

A: let the upwards acceleration gained due to the fart be a let maximum height reached be H final…

Q: What is speed? Force x distance minus acceleration

A: Answer                    B) The distance an object moves over time Reason

Q: A 1500 kg car moving at 20 km/h is accelerated ata constant rate of 4 m/s2up to a speed of 75…

A:

Q: A 4.8-kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket…

A: F=ma+g

Q: A helicopter carries a box of supplies of mass M 550 kg by a rope that hangs vertical. The rope…

A:

Q: A stalled car is being pushed up a hil by 3 people, and it is moving at a constant speed. the net…

A: Mathematical Proof Object is moving with constant velocity v = k m/s So the change in velocity Δv= 0…

Q: Imagine a landing craft approaching the surface of Callisto, one of Jupiter's moons. If the engine…

A: At an upward force of F1=3048 N, the ship descends at a constant velocity which means that the net…

Q: I contestant in a Winter games event polls a 59.0 KG block of ice across a frozen Lake with a rope…

A: Given data: Mass of ice (m) = 59 kg Coefficient of static friction μs = 0.1 Coefficient of kinetic…

Q: Is it true that when you drop from a branch to the ground below, you pull upward on Earth? If so,…

A: According to newton any object of mass (say “m”) in the universe is attracted by any other body in…

Q: A horizontal force (F=24 N) is applied on an object of mass m 4 kg sliding on a horizontal rough…

A:

Q: You walk into an elevator, step onto a scale, and push the "down" button to go directly from the…

A: Given data The normal weight is W = 615 N The magnitude of the acceleration is a = 2.45 m/s2

Q: during take off in space, an 80kg is subjected to an acceleration equal to 5 times the pull of…

A:

Q: Roan applied a net horizontal force of 145 N to Rey with mass 80 kg who is resting on the edge of a…

A: Given data: Force F =145 N Mass m= 80 kg

Q: The figure shows an acceleration-versus-force graph for a 200-g object. What should be the value of…

A: Newton's second law of motion determines the force experienced by a body which varies linearly to…

Q: Which car will accelerate faster, (A) a 500 kg car with a 145 kg engine exerting 12,000N of force;…

A: Given, 500 kg car with 145 kg engine exerting 12,000 N force and 500 kg with 120 kg engine exerting…

Q: How much braking force in pounds is needed to keep your 4500N car from sliding down a 550 hill?…

A:

Q: As you stand on a floor,does the floor exert an upward force against your feet? How much force does…

A:

Q: Albert weights 85kg stands on a scale inside an elevator. What is the weight in Newton that the…

A: Given that: Mass of albert: m=85 kg To determine the weight that the scale reads: (a) at rest? (b)…

Q: Suppose there is a box of books with a mass of 10 kg resting on a flat horizontal table, and What is…

A: Given:- The  mass of the box of books m = 10 kg  The coefficient of the static friction between the…

Q: A person weighs a 5.0 kg fish using a spring scale attached to the ceiling of an elevator. What does…

A: Given  Fish  weight = 5 kg  The external forces acting on the fish are the downward force of gravity…

Q: How much distance does it take to stop a car going 30 m/s (67 mph) if the brakes can apply a force…

A:

Q: What is the net force acting on a car cruising at a constant velocity of 70 km/h (a) on a level road…

A: The velocity of the car,

Q: What if we have air resistance in the environment? Will there be any differences? Justify your…

A: To determine: What happens if there is air resistance in the environment, and what are the…

Q: You are in an elevator that is traveling upward, but slowing down at a rate of 2 m/s?. If your mass…

A:

Q: When a student steps on a bathroom scale inside an elevator that is at rest, the scale reads 490 N.…

A: Weight of student when elevator at rest: W =  490 N Weight of student when elevator is moving: W' =…

Q: As part of a physics experiment, you stand on a bathroom scale in an elevator. Even though yur…

A:

Q: How much thrust acceleration of 1.5 m/s? What acceleration will be produced by a force of 2.0 x 10 N…

A: Data provided: Net Force (Fnet) = 2.0 × 103 N Mass (m) = 1.0 × 103 kg Required: Acceleration (a)

Q: How much force would a car’s tires need to provide to accelerate an 1800 kg car at a rate of 4.0…

A:

Q: The elevator of a mine weighs 3200 N. In the last upward moments of the descent, the elevator has an…

A: Drawing the free body diagram of elevator T is tension in rope As g=10 m/s2 Mass of elevator is ,…

Q: You are riding a race car at a constant speed of 225 km/ h when you pass by another vehicle with a…

A: Answer Given Speed of first car s1 = 225 km/h Speed of second car s2 = 88 km/h

Q: As part of an attempt to combine physics and biology in the sameclass, an instructor asks students…

A: Given:- mass (m)=5.2 kg Find:-the apparent weight of the salmon. a)  If the elevator is rest  b) if…

Q: On Mercury, the acceleration due to gravity is 3.59 m/s². How far would a 47 g rock fall from rest…

A: Given data:  Acceleration due to gravity (g) = 3.59 m/s2 Mass (m) = 47 g Initial velocity (u) = 0…

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!