(II) What will a spring scale read for the weight of a 58.0-kgwoman in an elevator that moves (a) upward with constantspeed (b) downward with constant speed 5.0 m/s(c) with an upward acceleration 0.23 g, (d) with a downwardacceleration 0.23 g, and (e) in free fall?

Q: A load of 500 kg is pulled along level ground at constant speed by a pull of 1.5 kN at an angle of…

A: The net force acting on the load is, ∑F=0F-μmgcosθ=0F=μmgcosθμ=Fmgcosθ

Q: A driver in a 1000 kg car traveling at 20 m/s slams on the breaks and skids to a stop. If the…

A: Given:Velocity of the car = 20 m/sCoefficient of friction = 0.8

Q: A bicyclist can coast down a 8.18 degree hill at a constant speed of 5.55 km/h. If the force of air…

A: Given , Fair = cv V= 5.55km/h V' = 19.3km/h Mass of cyclist plus bicycle m = 78.6 kg

Q: À coil spring is extended by 2.50 cm when it sup- ports a 1.00-N weight. If an identical spring is…

A:

Q: A 29 750 kg airplane travelling at 305 m/s. (b) If it suddenly noses vertically upward at this…

A:

Q: At what altitude L (km) above such that the weight of an object reduced to one-third of its

A:

Q: Two blocks A and B of the same mass 1.06 kg are released from rest on a 30° incline when they are S…

A:

Q: A dragster reaches 350 km/h from rest in 6.2s. If the car is 800 kg and generates a driving force of…

A: Initial speed of the car is u = 0 m/s Final speed of the car is v = 350 kmph = 97.22 m/s Time taken…

Q: A driver in a car traveling at 23 m/s slams on the brakes and skids to a stop. If the coefficient of…

A: Please see the answer below.

Q: Ohh, thank you for pointing that out...will resend now. An alpine skier—see Fig. 5.12.1—has total…

A: The free body diagram of the skier is shown below.

Q: An automobile weighing 5500 lb is driven down a 5° incline at a speed of 60 mi/h when the brakes are…

A: Given Data : The weight of the car is given as W = 5500lb. The initial speed of the car is given as…

Q: To check the radius of a railroad curve, the effect of a 40-N weight is observed to be 41.400N on a…

A: A body in circular motion experiences a radially outward force on it called as centrifugal force. It…

Q: A car of mass 975 kg coasts on a level road, starting with an initial speed of 15.0 m/s and coming…

A:

Q: own in the figure, remains at rest up te ximum force 2N down the inclined pl e maximum external…

A: Normal/reaction force calculate by components method Here limiting friction is 2N

Q: If the block in Fig. 4.22 is released, it will over- come static friction and slide rapidly down the…

A: Weight (w) = 60 N Coefficient of kinetic friction = 0.3Applied force = P

Q: a gun is shot into a 1 kN block which is hanging from a rope of 1.8 m long. the weight of the bullet…

A: Given The mass of the bullet is mb=5 N. The mass of the block is mB=1 kN=1000 N. The initial…

Q: Assume a 2510 kg truck is accelerating up a hill with an 18 o incline from an initial speed of 8.33…

A:

Q: Fomd the horizontal for required moving a body weighing 200kg one a rough horizontal surface having…

A: Given data : Coefficient of friction (μ)=0.35Mass (m)=200 kgTo find :Horizontal force=F

Q: A 51.5-kg swimmer with an initial speed of 1.25 m>s decides tocoast until she comes to rest. If…

A:

Q: An object with a mass of 2kg is suspended from two points on the ceiling 15 cm apart by two strings…

A:

Q: A trampoline launches a 50.0 kg person 2.00 m into the air. If the springs push with 1960 N of…

A:

Q: . Since a bucket of water is “weightless” in space, would it hurt tokick the bucket? Explain.

A: A bucket in space

Q: Superman must stop a  120 km/h train  in 150 m to keep it from hitting a stalled car on the tracks.…

A:

Q: In the absence of air resistance, which will fall first to the ground..... a handkerchief or a…

A: Any object falling under the force of gravity experiences the same acceleration due to gravity i.e.…

Q: A 4.80-kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength…

A:

Q: A box of 450N is lying in an inclined plane with angle of 35 degrees. If the applied load to move…

A:

Q: The dynamic friction is little less than limiting friction. Why?

A: When a body tries to slide on another body, due to its uneven surfaces, they get interlocked with…

Q: The 1.5-Mg four-wheel-drive Jeep is used to push two identical crates, each having a mass of 500 kg.…

A: Given data:

Q: A 2.6 kg mass is initialy at rest upon a frictionless surface. An applied force of 9 N is exerted on…

A: It is given that

Q: The weightless block is fixed at the top of the inclined plane, which makes an angle of 300 with the…

A: Angle 300 seems wrong, it must be angle 30°  Given;  masses m1 = m2 = 1 kg θ = 30° coefficient of…

Q: A spherical rock of mass 4.0 kg is suspended from a cord. A steady horizontal breeze pushes the rock…

A:

Q: A loaded penguin sled weighing80 N rests on a plane inclined atangle u  20 to the horizontal…

A: Weight of the penguin sled mg= 80 N Angle of inclination of the plane θ = 200 Coefficient of static…

Q: A block of mass m 1 kg is found on an inclined plane that makes an angle 30° with the horizontal.…

A: Given data: Mass of the block, m=1 kg Angle of inclination, θ=300 Coefficient of static friction,…

Q: An automobile weighing 4500 lb is driven down a 5° incline at a speed of 60 mi/h when the brakes are…

A: Given data: W=4500 lbFR=1800 lbθ=5° Need to determine the  distance travelled by the automobile…

Q: A person is pushing a wooden crate of mass m, = 20 kg at a constant speed vo = 1.2– for Ax = 3 m…

A: Given mass mo = 20 kg speed vo = 1.2 m/s distance travelled Δx = 3 m

Q: A body begins to slide over the surface of another, when pulled with a force of 10 N, if we pulled…

A: Option C is the right answer  9N

Q: A car of mass 1200 kg accelerates steadily from down a steady incline at 150 to the horizontal. If…

A:

Q: An elevator and its load weigh a total of 800 kg. Find the tension Tin the supporting cable when the…

A: Third equation of motion v2=u2+2as The above equation is  the third equation of motion which shows…

Q: A heavy bird sits on a clothesline. Will the tension in the clothesline be greater if the line sags…

A: Draw the free body diagram of the clothesline when the heavy bird is on it.

Q: A 9.00-kg hanging weight is connected by a string over a pulley to a 5.00-kg block that is sliding…

A:

Q: Show that the acceleration of any object down a frictionless incline that makes an angle θ with the…

A: Acceleration due to gravity

Q: A driver of a 1000 kg car traveling at 20 m/s slams on the brakes and skids to a stop. If the…

A:

Spring Potential Energy

The potential energy is the energy possessed by a body by virtue of its position or the energy held by the object due to its position relative to other objects, its force like stresses, charge, and other factors affecting the particles of the body. The potential energy is the measure of the net work done by or on the body. The spring potential energy is the potential energy stored due to the deformation of an elastic spring and this elasticity is due to the stretched spring. The elasticity is the ability of a solid-state matter to come back to its equilibrium position or original position after any kind of external force is acted on it. It is also known as Elastic potential energy. The potential energy here is caused due to the displacement of the spring from its equilibrium position to another position and this potential energy is equal to the net work done due to the stretching of the spring. It also resembles the same mechanics of the oscillation of a simple pendulum, where due to the external force, the object moves from its equilibrium position to its maximum ends and the periodic motion continues till it comes back to the equilibrium position to rest.