How long does a ball return to the thrower if it was given an initial vertical velocity of 80 ft/s?

Q: 1.) Given: A 800 kg car is traveling over a hill with the shape of a parabola. When the car is at…

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Q: Suppose you have a 145-kg wooden crate resting on a wood floor. (For each answer, enter a number. H…

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Q: Suppose you have a 115-kg wooden crate resting on a wood floor. (For each answer, enter a number. u,…

A: Mass of wooden crate = 115 kg μk = 0.3μs = 0.5

Q: 2. A 40-lb suitcase has an initial velocity down the ramp of va = 20 ft/s and the coefficient of…

A: in this  question  we use  equation of motion and free body diagram  equation.

Q: Q1/ A 50.0kg woman inside an elevator is standing on a scale. How will the acceleration of the…

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Q: 1. The acceleration due to gravity at a certain level is 9.78 m/s?. This acceleration varies by 8.28…

A: From the question statement, the expression for the acceleration in terms of the height is:

Q: 13) Which of the following is NOT a correct statement? A) It is possible for a body to be…

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Q: 5. To investigate Newton's Second Law, an 80-kg Nursing student brings a scale in an elevator. She…

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Q: A 151 kg crate is placed on an adjustable inclined plane. If the crate slides down the incline with…

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Q: Suppose an astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 130 kg, and…

A: When the astronaut gets on a scale, the reading it shows is the weight of the astronaut.   Now,…

Q: 3. [#663a] Car physics, part 1. A car has a drag coefficient Cd = 0.30, a frontal area of A = 1.9 m²…

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Q: The force of gravity is twice as great on a 2.0-kg rock as on a 1.0-kg rock. Why does the 2.0-kg…

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Q: A horizontal rope is attached from a truck to a 1304-kg car. As the truck tows the car on a…

A: Maximum possible acceleration of the truck is  a = 2.06 m/s2

Q: What is the acceleration of a rock at the top of its trajectory when it has been thrown straight…

A: In this question they have asked the acceleration of Rock at the top of its trajectory when the Rock…

Q: 1. One of the physical quantities which is not a derived quantity a. acceleration c. length 2. This…

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Q: 2. Two blocks are stacked in an elevator as shown. The elevator is moving down at 3.0 an speeding…

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Q: 4. In a physics lab experiment, a 6.00kg box is pushed across a flat table by a horizontal force. a)…

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Q: 1) The coefficient of static friction between a car of mass 100 kg and asphalt is µ̟ = 0.7. What is…

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Q: 2. Three astronauts, propelled by jet backpacks, push and guide a 120 kg asteroid toward a…

A: Given: Magnitude of forces are: F2=55 N F3=41 N θ3=60° mass ,m=120 kg acceleration, a=0.88 m/s2 at…

Q: How much force acts on a tossed coin when it is halfway to its maximum height? How much force acts…

A: In this question 3 it is asked that How much force acts on a tossed coin when it is halfway to its…

Q: A strong boy throws a rock straight up with a force of 100 N. At what rate does the rock initially…

A: mass of the rock = m = 2 kg up ward force = F = 100 N Acceleration due to gravity = g = 9.74 m/s2…

Q: A 3.45×103 kg train is stopped at a station. The train must go around a 149 m diameter corner right…

A: Consider a train of mass, m travels with a constant force, F takes a turn around the corner of…

Q: Determine the weight on an object when the mass of the object is 50 kg and the acceleration due to…

A: Determine the weight on an object when the mass of the object is 50 kg and the acceleration due to…

Q: 14. A student apparently weighs 180lb, in an elevator that is accelerating at the rate 5ft/s^2…

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Q: 15. Two masses are connected together and hang vertically from a rope which passes over a pulley. mi…

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Q: 3) If you can exert a pull that is greater than your weight, why can’t you fly off the ground by…

A: If you can exert a pull that is greater than your weight, why can’t you fly off the ground by…

Q: *122. On earth a block has a weight of 88 N. This block is sliding on a horizontal surface on the…

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Q: How much weight would a 165 kg register if the local acceleration due to gravity is 6.31 m/s2?…

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Q: 1. A 17.43kg object speeds up from 14.86m/s to 48.05m/s over a distance of 100.90m. What is the…

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

Q: 2. The worker knows that the lower crate has a mass of 50 kg and the upper a mass of 10 kg. She…

A: Given data: The mass of lower crate is M=50 kg. The mass of upper crate is m=10 kg. The force…

Q: 9. Three identical blocks of masses m =2 kg are drawn by a force F = 10.2 N with an acceleration of…

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Q: 2. Two masses connected by a string are pulled across a horizontal frictionless surface with a…

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Q: 25. A man is standing on a platform that is connected to a pulley arrange- ment, as the drawing…

A: Apply Newton’s second law to the given situation. The net force (upward) on the system can be…

Q: What is the answer and draw the FBD. In an airplane crash a woman is holding an 8.18 kg, 18 pound,…

A: Mass of the baby m=18 pound=8.18 kg and horizontal de-acceleration experienced by the lady holding…

Q: You want to hang an object from the ceiling of an elevator that has a maximum acceleration of 4.0…

A: Given :T=45 Na=4 m/s2

Q: 1. If the body starts from rest at A and slides 200 ft down the 30° incline, how far will it then…

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Q: #1. When you push a 1.80-kg book resting on a tabletop, it takes 2.25 N to start the book sliding.…

A: To just tart the motion, the static friction is there and for the motion, the kinetic friction is…

Q: 2- A test projectile is fired horizontally into a viscous liquid with a velocity 100 m/s. The…

A: Given, v = 100 m/s, acceleration, a = -0.8v2 To find distance travelled by liquid and corresponding…

Q: 2. You get in an elevator, and step onto a weighing scale. You also recall that your normal weight…

A: Normal weight of a man=625N

Q: A 2 – kg box is being pulled by a force P = 30 N having an angle of θ = 35°. The surface is…

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Q: At a given instant in time, a 10-kg rock is observed to be falling with an acceleration of 8.5…

A: Given data *The mass of the rock is m = 10 kg *The given acceleration is a = 8.5 m/s2

Q: What is the weight of 70-kg astronaut? A. on Earth B. on the Moon (g = 1.6 m/s?) C. on Mars (g = 3.7…

A: Given data: Mass (m) = 70 kg Gravity on the moon (g) = 1.6 m/s2  Gravity on the Mars (g) = 3.7 m/s2…

Q: A box is vertically pulled by a rope against gravity at an acceleration of 2 m/s?. If the mass of…

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Q: The coefficient of static friction between the tires of a car and a horizontal road is 0.2. If the…

A: The third equation of motion is  v2 = u2 + 2 a s  The acceleration due to the friction is given by…

Q: A 72 kg person is standing inside an elevator. The elevator is moving upward at 2.61 m/s and is…

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Q: 1. An airplane has a mass of 35,000 kg and a take -off acceleration of 1.20 m/s2. what is the net…

A: Mass of the airplane m=35000 kg and take off acceleration on the ramp a=1.2 m/s2. We need to find…

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?”