9. A slingshot consists of a light leather cup containing a stone. The cup is pulled back against two parallel rub- ber bands. It takes a force of 15 N to stretch either one of these bands 1.0 cm. (a) What is the potential energy stored in the two bands together when a 50-g stone is placed in the cup and pulled back 0.20 m from the equilibrium position? (b) With what speed does the stone leave the slingshot?

Q: force of 3.0 pounds is needed to stretch the spring to 1.0 ft. from its natural length of 10 inches.…

A: Let the spring be stretched through a small distance d x dx dx. Then work done in stretching the…

Q: 19. What power is needed to move a 13.4 kN car up an 8 degree incline with a constant speed of 80…

A: Given: The weight of the car is 13.4 kN. The frictional force is 360 N. The inclination of the ramp…

Q: As an object moves from point A to point B only two forces act on it: one force is nonconservative…

A: Given : Wnc = +40 J Wc = -60 J

Q: s of a Y-stick and a light leather cup containing a stone. The cup is pulled back against two…

A: GivenF=15 Nx=-1.0 cm=-0.01 mTwo bandsMass of stone, m=50 g=0.05 kgPulled back againx'=-0.2 m

Q: A 20-kg block on a horizontal surface is attached to a light spring (force constant = 8.0 kN/m). The…

A: The elastic potential energy stored in a spring-mass system is given as:P.Es=12kx2wherek is spring…

Q: A 10 N force is needed to move an object with a constant velocity of 5.0 m/s. What power must be…

A:

Q: I wo identical springs are attached to a small cube as shown in the top panel of the figure. The…

A: The effective spring constant in this case is the sum of the two spring constants. k=k1+k2…

Q: A roller coaster filled with 20 people weighs 2645 kg. It is speeding through the track at 10.74 m/s…

A: Given Data : The total mass of the roller coaster is given as m = 2645 Kg. The speed of the roller…

Q: A cable with length 8m has a mass of 16kg and is hanging off of the side of a building. Acceleration…

A:

Q: An engine can apply a constant 44.8N of horizontal force to a box. If the engine has 53173.7J of…

A: Given data: Force (F) = 44.8 N Energy transferred to the box = 53173.7 J Required: The displacement…

Q: 9. A car of mass 1550 kg traveling at 27.0 m/s is at the foot of a hill that rises 110 m in 2.60 km.…

A: Average power is defined as the ratio of total work done by the body to the total time taken by the…

Q: Q17. The potential energy of a 0.20-kg particle moving along the x axis is given by U(x) = (8 * 2 -…

A: 17. Given that,  Mass of particle, m = 0.2 kg Potential energy, U(x) = 8x2 - 2x4 Distance, x = 1m

Q: What is the work done by the weight of the 10-kg collar sliding from C (8 = 60°) to B? r = 0.3 (1 +…

A: Given, Mass=10kg K=500N/m

Q: How much power does it take to do 450 J of work in 5 seconds?   A. 0.011 W   B. 22.50 W    C.…

A: Given data: Energy, E=450 J Time, T=5 s

Q: A 1.60-m-tall person lifts a 1.65-kg book off the ground so it is 2.20 m above the ground. What is…

A:

Q: An advertisement claims that a certain 1,200-kg car can accelerate from rest to a speed of 25 m/s in…

A:

Q: A girl with a mass of 17.46 kg on a swing. Her friend gives her a push such that the maximum height…

A: Given: The mass of the girl is 17.4 kg. The maximum height of a girl from the ground surface is 0.39…

Q: If it requires 6.0 J of work to stretch a particular spring by 2.0 cm from its equilibrium length,…

A: Given : Work required to stretch spring by 2 cm=6 J

Q: A spring has a natural length of 0.0960 m and a spring constant of 360 N/m. How much potential…

A:

Q: • A block of mass m = 0.88 kg is connected to a spring of forceconstant k = 845 N>m on a smooth,…

A:

Q: An object with mass m = 152 kg moving at the speed of v = 0.53 m/s was stopped by an external force…

A:

Q: An overhead garage door has two springs, one on each side of the door. A force of 15 pounds is…

A: Let the restoring force of the spring having spring constant k is denoted by F. The spring is…

Q: A 15.0 kg load of groceries is lifted up from the first floor to the fifth floor of an apartment…

A: Given that, Mass (m)= 15 kg Height of each floor (h)= 5 m Height of second floor from first floor…

Q: What is the elastic potential energy of a garter if you apply 1.5N force and stretched from its…

A: Given data:  Stretches in garter (x) = 5 mm = 0.005 m Force constant (k) = 3.5 × 102 N/m Required:…

Q: The staples inside a stapler are kept in place by a spring with a relaxed length of 0.119 m. If the…

A: SOlution: Given that k = 48 N/m relaxed lenght x0 = 0.119 m extension lenght x = 0.15 m

Q: A 25.0 kg child is on a swing having a high point 1.85 m above the ground and a low point 0.500 m…

A: Given data The mass of the child is m = 25 kg The distance of the high point above the ground is…

Q: When a car is moving at constant speed, the developed potential is used to overcome the frictional…

A: Given Data: The power developed by the car is P = 50 hp. The velocity of car is v = 24.6 m/s. The…

Q: ** 20. A string exerts an upward tension force of 45 N on a 5-kg blo ck as it slowly lowers the…

A: Given:Mass of the block = 5 kgTension in the string = 45 NDistance traveled by the block = 4 m

Q: 300 The mass of a pendulum bob is 0-2 kg, and it is suspended by a string 1 m long. It is pulled…

A:

Q: A force of 3.0 pounds is needed to stretch the spring to 1.0 ft. from its natural length of 10…

A:

Q: The length of the Achilles tendon increases 0.500 cm when the force exerted on it by the muscle…

A:

Q: 14: A constant force of (121) N acts on a 4.0-kg object as it moves from the origin to the int…

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

Q: A block with mass m = 12 kg rests on a frictionless table and is accelerated by a spring with spring…

A:

Q: A 20-kg block on a horizontal surface is attached to a light spring (force constant = 8.0 kN/m). The…

A:

Q: How much force is required to move a box 25 m using 689 J of energy? A. 0.036 N B. 28 N C. 17000…

A: Given data:  Displacement (d) = 25 m Energy or work done (W) = 689 J Required: Force (F)

Q: A force of 3.0 pounds is needed to stretch the spring to 1.0 ft. from its natural length of 10…

A:

Q: If 8.0 joules of work is done when a horizontal force of 4.0 N moves a 12.0 kg box across a floor,…

A:

Q: A 70.0 kg stuntman stands on a bridge. He is attached to a bungee cord with an unstretched length of…

A: For, Gravitational potential energy change assume the lowest point of the person after jumping as a…

Q: An electric elevator with a hoist at the top has a steel cable which weigh 3kg/m. The total height…

A:

Q: A child pulls a toy 2.8 m across the floor by a string, applying a force of constant magnitude 0.950…

A: Given : force applied, F = 0.950 N For 1st 1.4 m string is parallel.  For next 1.4 m string makes…

Q: A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a…

A: Given : d = 11 m m = 57 kg

Q: What is the work performed in compressing a quadratic spring, F=kx2, with k-200 N/m2, from 2 m to 3…

A: Spring constant (k) = 200 N/m2original position = 2m final position = 3m

Q: A 15.0 kg load of groceries is lifted up from the first floor to the fifth floor of an apartment…

A: Given: The mass of the load is 15 kg. The final position is on the fifth floor. The reference point…

Q: 1830 N 1295 N 60° 45° 2500 N FG

A:

Q: A 7.0-kg block on a horizontal frictionless surface is attached to a light spring (force constant…

A: Given:-             A 7.0-kg block on a horizontal frictionless surface is attached to a light…

Q: A toy robot powered by an electric motor accelerates from rest to 0.740 m/s in 20.0 ms. The total…

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.