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 rocket takes off from Earth's surface, accelerating straight up at 43.2 m/s2. Calculate the normal…

A: Given,

Q: Your car just ran out of gas and you are stuck in the middle of the road holding up traffic.…

A: According to Newton's third law every action has equal and opposite reaction .It means if we exert…

Q: A net force of 450N accelerates a bike and rider at 3.5m/s^2, what is the mass of the bike and…

A:

Q: 6. An 50.0 kg student rides up the LASS elevator with a recycling bin. If the elevator is moving at…

A: The mass of the student is 50 kg, riding in an elevator moving at a constant speed of 4 m/s. The…

Q: A student wrote: “The only reason an apple falls downward to meet the earth instead of the earth…

A: Apple and earth

Q: Shown is the velocity graph of a 75 kg passenger in an elevator. What is the passenger’s apparent…

A: The slope of velocity time graph gives acceleration at a particular point.

Q: A 4.0 kg sphere and 8.0 kg sphere are both dropped from the same height at the same time. If the two…

A: If the objects are under free fall, the only force acting on the object is gravity . Ans also, in…

Q: 25. An object of mass m, hangs from a string that passes over a very light fixed pulley P, as shown…

A: Free body diagram of mass pulley system.

Q: A simple elevator ride can teach you quite a bit about the normal force. There are three different…

A: To determine,The normal force(FN) in different scenarios.part aScenario. 3 the cable breaks and the…

Q: Calculate the normal force (in N) acting on an astronaut

A: Given data:   The acceleration of rocket is: a = 31.2 m/s2 The  mass of astronaut is: m = 80.4 kg…

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=635 N The elevator move with constant speed (v=0). So, the…

Q: A person stands on a scale inside an elevator at rest. The scale reads 800 N. The elevator…

A:

Q: 2.Calculate the highest speed a car can reach over a 196.85-foot distance starting from a…

A: GivenDistance to be reached by car,d=196.85 footWeight of automobile is not uniformly…

Q: As a roller coaster (weight is w at rest) crosses the top of a 46-m-diamater loop-the-loop in a…

A: The radius of the loop is, r=d2=46 m2=23 m The centripetal acceleration of the roller coaster is,…

Q: A rocket takes off from Earth's surface, accelerating straight up at 71.2 m/s2. Calculate the normal…

A: Now to calculate the forces on the astronaut consider the free body diagram of the astronaut. A free…

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: Question 4 )-An airplane wants to drop a box of mass 100 kg to an island. The box was released at…

A: Given:  Mass of box, m=100 kg Initial position of box when it is dropped, ( 0, 20, 0) Initial…

Q: A 65 kg high jumper leaves the ground with a vertical velocity of 10 m/s. How high can he jump? The…

A:

Q: A student weight himself on the scale at rest in the elevator, at the third floor, the value was…

A: Given data:  Weight of student (W) = 670 N Student riding down in the elevator  Apparent Weight =…

Q: . Question 4 ). An airplane wants to drop a box of mass 100 kg to an island. The box was released at…

A:

Q: The 200 kg elevator in the Physics department is at rest on the TOP floor whilst being suspended by…

A: Elevator mass, m = 200KgDownward acceleration of elevator, a = 4m/ssInitial Velocity of elevator, u…

Q: A 300 kg elevator on planet Zico (g=13 m/s/s) is at rest on the TOP floor whilst being suspended by…

A: Calculate the tension T in the rope when the elevator is stationary. T=mg=300 kg×13 m/s2=3900…

Q: A crate with a mass of 15kg is being dragged across the groud at a constant velocity of 2.0 m/s by…

A:

Q: A person stands on a scale inside an elevator at rest. The scale reads 800 N. The elevator…

A:

Q: A simple elevator ride can teach you quite a bit about the normal force. There are three different…

A: M= 75.1kg  g= 9.81 m/s2

Q: A baseball with mass of 0.145 kg is thrown straight down at the ground. At a particular speed, it…

A: Kinematics.

Q: Three blocks (labeled 1,2, and 3), each with different mass, have a forceexerted on them. The…

A: The slope of the straight line plotted between x axis and y axis  is given by dydx The body when…

Q: A 6.0-lb stroller resting on a horizontal floor is pulled by a 85-lb boy with a constant force of…

A: This problem is based on kinematics. Please have a good look

Q: You are going up in an elevator. Initially the elevator accelerates for 2.0 s to 6.0 m/s. Then it…

A: The mass from the weight can be calculated using the standard formula for weight as below,

Q: The total mass of the Mars Pathfinder Lander is 860 kg. The acceleration due to gravity on Mars is…

A: Given data: Mass (m) = 860 kg Acceleration due to gravity on Mars (g) = 3.8 m/s2 Air resistance…

Q: Question 4 - An airplane wants to drop a box of mass 10 kg to an island. The box was released at…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: In Figure 5.12, the net external force on the 24-kg mower is given as 51 N. If the force of friction…

A: The mass of the mower,   The net force,

Q: A spaceship is in orbit around the earth at an altitude of 12000 miles. Which one of the following…

A: A spaceship is in orbit around the earth at an altitude of 12000 miles. Which one of the…

Q: On a beautiful winter Sunday, you drag your two nieces in a sleigh on a snowy sidewalk. You pull on…

A: Given that:m1=25 kgm2=15 kgF=50 Nθ=30°

Q: Spiderman (m = 80 kg) runs with an acceleration of 3.0 m/s2, a) How much horizontal force does he…

A: Given Data : The mass of the spiderman is given as m = 80 Kg. The acceleration of the spiderman is…

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: Suppose the mass of a fully loaded module in which astronauts take off from the Moon is 10,400 kg.…

A:

Q: A flat cushion of mass m is o Cu released from rest at the corner of Wind force the roof of a…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Q: A rocket takes off from Earth's surface, accelerating straight up at 55.2 m/s2. Calculate the normal…

A: Write the equation for net force

Q: Imagine you are at Disneyland on a big roller coaster, sitting with a friend in the front seat of…

A: The roller coaster is the example for the Newton's law of motion. As it is having loops, twist and…

Q: With the blocks initially at rest, the force P is increased slowly from zero to 96 lb. Plot the…

A:

Q: A rocket takes off from Earth's surface, accelerating straight up at 51.2 m/s2. Calculate the normal…

A: The acceleration of the rocket is 51.2m/s2, and mass of the astronaut.

Q: World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly…

A: Given data: Acceleration,a=15m/s^2 Mass,m= 55 kg We know that force,F = ma F = 55 × 15 F= 825 N

Q: A 5.0 kg toy car can move along an x-axis. The figure below shows force, Fx, acting on the car. The…

A:

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!