If you are standing on a weighing scale attached to the floor of an elevator of a building and you see that the scale reading is zero, then the elevator is a. accelerating upward. b. freely falling. c. moving at constant velocity. d. not moving.

Q: 115. An 800-newton person is standing in an elevator. If the upward force of the elevator on the…

A: Given,

Q: 1) The force on a 41kg object is (84,423) N.  Calculate the x-component of the object's acceleration…

A: (1) The mass of the object is: m=41 kg The force on the object is: F=84, 423 N

Q: 6. A skier wishes to build a rope tow to pull herself up a ski hill that is inclined at 15° with the…

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: 5. Newton’s third law of motion states that forces between interacting objects occur in matched…

A: Given:  Newton’s third law of motion states that forces between interacting objects occur in…

Q: 9. The gravity on the moon is about 1.6m. If a person jumps with an initial velocity of 2 off the…

A: Solution:-Given thatGravity on moon (g)=1.6 m/s2Initial velocity (u)=2 m/s

Q: A bicycle travels 12 km in 40 min. Its speed is a. 0.3 kph b. 8kph c. 18 kph d. 48 kph Acceleration…

A:

Q: 1. What was the initial speed of a ball thrown upwards (close to the surface of the earth) if it…

A: The kinematic equation of motion is given by Where v = Final speed, u = Initial speed, =…

Q: 6. The Grand Canyon is 6,093 feet (1857 meters) deep. (Ignore air resistance) If you dropped a rock,…

A: Given: Δx = 1857m

Q: A 0.25 kg ball is dropped from a 30 meter building. At the same time, a 2 kg ball is thrown downward…

A: The dropped ball and the ball thrown downward with a 50 N force would experience only acceleration…

Q: A light mass and a heavy mass are dropped from the same height at the same time. Which one will have…

A: The velocity of the object in free fall is given as, v=2gh Since the height is the same for both the…

Q: Which graph below represents the relationship between velocity and time for an object thrown…

A: we know that  v = u +at where v is final velocity u is initial veloctiy a is acceleration  t is time…

Q: When the acceleration of a moving body is zero, a. The body is moving with a constant velocity. b.…

A: Given data:  The acceleration of the moving body is zero. Acceleration (a) = 0

Q: Match Letter to discription Measure of the change a force produces…

A: We will match each of the quantity in a table.

Q: A projectile fired into frictionless space will need how much force to keep it going? Select one:…

A:

Q: You tell a friend that the Earth is traveling greater than 62,000 miles per hour around the Sun.…

A: The .answer is given below

Q: 20. Suppose a 60.0-kg gymnast climbs a rope. (a) What is the tension in the rope if he climbs at a…

A: Part-a Given: Weight of the gymnast m = 60 kg. Speed is constant.

Q: 1. A 200-N block in contact with a level plane is acted upon by a horizontal force P = 100N. The fk…

A:

Q: A 10 kg block is pushed at 100 m/s (horizontally) from the roof of a building that is 500 m from the…

A:

Q: 22. An object with a mass of 25 kg is falling in air and experiences a force due to air resistance…

A: Given, mass of the object m = 25 kg Force due to air resistance fr = 60 N   We know the expression…

Q: Many people are familiar with the fact that a rifle recoils when fired. This recoil is the result of…

A: According to the Newton’s third law of motion, both the rifle and the bullet experience the same…

Q: A rope is guaranteed to not break as long as tension does not exceed 1000N. You try to lift a mass…

A: Given quantities: maximum tension (T) = 1000 N mass of the object (m) = 60 kg acceleration due to…

Q: 13. If an object weighs 450N on Earth. Find its mass. If an object is on earth then the…

A: Due to multiple question posted, we will be answering the first question. If any questions need to…

Q: A trampolinist flies straight up into the air, then back down onto the trampoline, where she comes…

A: Let us say, mass of the trampolinist = m Acceleration of the trampolinist is a If we take upward…

Q: Suppose you place a box on a wooden board. You raise the board from one of its ends so that its…

A: Explanation: When a body slides down the ramp, the downward force on the body remains constant and…

Q: A 95 kg male and a 65 kg female are stranded in deep space separated by a distance of 15 m. If they…

A: The attraction between all masses in the universe is known as gravitational force.

Q: 46. Roller coasters use some of the most sophisticated technology. Safety is a big part of that…

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!