41. When you weigh yourself on good old terra firma (solid ground), your weight is 142 lb. In an elevator your apparent weight is 121 lb. What are the direction and magnitude of the elevator's acceleration?

Q: ne make it to the second shelf if her accelerati = does she land?

A: A GIVEN acceleration a = 2.5 m/s2

Q: You are not on earth. You have a ball on a string. You whirl it in a vertical circle (similar to the…

A: a)1. Gravitational acceleration, g=8 m/s22. Mass of ball, m= 5 kgb) Length of string, r=1.5 m3.…

Q: . What coefficient of friction do cars need on a flat curve? (a) Calculate the centripetal force…

A: Mass of vehicle is Radius is Speed of vehicle is Note:Find:The centripetal force.

Q: 28. Suppose you swirl a 350-g ball attached to a 20.0-cm long string 5 times in 3.00 seconds in a…

A: solution q no. 28   given mass m = 350 gram length of the string L = 20 cm = 0.20 meter time t =…

Q: (a) What is the acceleration due to gravity on the surface of the Moon? m/s2 (b) What is the…

A:

Q: A car travels with a centripetal acceleration of 60 m/s2 on a horizontal speedway banked at an angle…

A: car moves on speedway with angle so normal force applied is equal to gravitational force component.

Q: and jack is down. If John throws a ball at an angle of 60° height will the ball reach after 2 s?…

A:

Q: 11. A soccer ball was kicked high and far. Which of the following statements is true? At the highest…

A: A soccer ball is kicked high and far

Q: Two identical artificial satellites, 1 and 2, orbit the Earth in circular orbits having radii R1 and…

A: Radius of first satellite R1 and radius of second satellite R2 are related by R2=3R1. For a…

Q: A 5 kg ball on a string rotates in a horizontal circle (radius=2.6 m) with a speed of 7 m/s. Find: ⦁…

A:

Q: 5. Two objects are falling in vacuum above a horizontal table, side by side. If one of the objects…

A:

Q: A passenger on a Ferris wheel of diameter 22 m makes one complete revolution every 45 s. What is the…

A:

Q: You are riding a 1500-kg car. The car makes a left turn in a comer with a 50 m radius. If the road…

A: The centripetal force must balance the frictional force in order for the car no to slide.…

Q: A car goes around a curve while maintaining a constant speed. Does the car accelerate as it goes…

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: A. How does the change in coefficient of friction affect the frictional force and tension? I. more…

A: (A) The frictional force is proportional to the coefficient of friction and the tension force is…

Q: What is a centripetal force? Explain the physics behind the bending of a cyclist in a curved road.

A: A centripetal force is a force that acts on an object moving in a circular path, pointing towards…

Q: 5. A curve in a stretch of highway has radius R. The road is banked at angle 0 to the horizontal.…

A:

Q: A jet plane flying 300 m/s experiences an acceleration of 2.0 g when pulling out of the circular…

A: The magnitude of the acceleration experienced by the plane is, a=2g=29.8 m/s2=19.6 m/s2 The velocity…

Q: Right after Princess Peach has thrown a turtle shell at Mario to take the lead, she comes up on a…

A:

Q: A rock of mass m = 0.68 kg is attached to a massless string of length L = 0.67 m. The rock is swung…

A:

Q: 2. You are on a flight to California reading an in-flight magazine article about the physics of…

A: We are given the plane here. Free body diagram gives us whole idea of the forces acting. We draw the…

Q: Physics, please solve question 6

A: A conservative force is one whose work is unaffected by the direction (or path) it takes. A force is…

Q: The International Space Station (ISS) orbits the Earth at an altitude (distance above the surface of…

A:

Q: Consider a skydiver falling towards the Earth. Air friction acts to oppose their motion. At some…

A: Given: A case of free fall with air resistance exist

Q: 15. A skier is at the top of a frictionless hill. The hill makes an angle of 30.0° relative to the…

A:

Q: A newly discovered planet has twice the mass and three times the radius of the earth. What is the…

A: Times the new planet's mass more than the earth i s2.Times the new  planet's radius more than the…

Q: 1. A fairground ride spins its occupants inside a flying saucer-shaped container. If the horizontal…

A: Given DataRadius r = 10 mmagnitude of centripetal acceleration is equal to acceleration due to…

Q: Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a…

A:

Q: A 2100-kg Jeep travels along a straight 400-m portion of highway (fr constant speed of 10 m/s. At B,…

A:

Q: 8. A baseball leaves the bat at an angle of 37 degrees. Above the horizontal at a speed of 120 ft/s.…

A:

Q: Phil is trying to dunk a basketball and leaves the ground with a vertical velocity of 3.5 m/s. a)…

A:

Q: A girl swings a 0.55 kg toy airplane attached to a 3.8 m string around her head in a horizontal…

A: The girl in the problem is swinging the airplane in a horizontal plane, such that the plane performs…

Q: 11. The gravitational acceleration on Earth is b. 0 c. 9.8 m/s? 12. What should be the launching…

A:

Q: A car is moving on an inclined road with 10 m/s velocity making an angle of 30 degrees with the…

A:

Q: A Snowbird pilot (mass 55.0 kg) is completing a circular arc during an air show. At the top of the…

A: Given, mass of the snowbird pilot, m = 55.0 kg At the top of the the arc gravity is, a = 2g = 19.6…

Q: Kerry and Tanya are going for a ride in a two-seat go-kart at an amusement park. Kerry is driving…

A: The following question can be answered using the concepts of Newton's laws of motion

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!