1. A spring has a natural length of 10in and a 30lb force stretches it to a length of 12in. Find the work done in stretching the spring to a length of 13in.

Q: 2.A box is pushed by force of 300 N up an inclined plane (incline angle = 30.0°). The mass of the…

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Q: 1. A student of mass 40 kg caries a bag weighing 5000g from the ground floor to his class on the…

A: Work done by boy W= mgh Given that m= 5kg  h= 0.7m

Q: A box is lifted vertically 13.51 m and is then held there. The box has a weight of 29.72 N. Ignoring…

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Q: 4. A force of 1 pounds is required to hold a spring stretched 0.2 feet beyond its natural length.…

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Q: 8. An overhead garage door has two springs, one on each side of the door. A force of 15 pounds is…

A: According to Hooke's Law, The pull of an ideal spring is directly proportional to how far you pull…

Q: 4. In a time t=18.00 s, a 60.0-kg student runs at a steady pace up two flights of stairs whose…

A: Given data:  Time (t) = 18.00 s Mass (m) = 60.0 kg Vertical height (h) = 7.80 m Required: Power…

Q: 3. A force of magnitude 10N acts on a body at angle 30° with respect to its displacement. Find the…

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Q: An ice cube of 10g (0.01 kg) is placed on top of a brass ramp with length 16.7 m and inclination of…

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Q: 3. A force of 1.18 N is required to stretch and hold a spring at a length of 0.16 m beyond its…

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Q: 11. You take a ride in a wagon. The wagon’s mass (including you) is 200 kg. A horse pulls it with a…

A: Total mass, m=200 kg Pulling force by the horse, F= 78.9 N Speed of the mass, v=3.7 m/s Displacement…

Q: 1. A weightlifter lifts a 200 N barbell from the floor to a height of 2 m. How much work is done?

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Q: How much mechanical work is required to mov feet to your heart, approximately 1.0m higher? A) 1 J B)…

A: Given:- 13 )  The mass of the blood m = 1.0 kg  [ Given ]  The height h = 1.0 m  [ Given ]  Find:-…

Q: 1. A giant spring has a natural length of 8 feet. It takes 180 foot-pounds of work to stretch it…

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Q: 1. A force of 5 pounds is required to stretch a spring from ints natural length of 3 inches to a…

A: Force required to stretch a spring from x=3 inches to x=4 inches is F=5 pounds. We need to find the…

Q: 1. Calculate the work done by a force of 30 N in lifting a load of 2kg to a height of 10m (g =…

A: Required work done by given forces to displace the objects.

Q: Calculate the work done by a 1500 watts appliance if it runs for 300 seconds

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

Q: 3. A constant force of 20.0 N is applied to an object of mass 8.00 kg at an angle of 25.0° with the…

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Q: A 30-foot chain hangs over the side of a 50 foot tall building. The chain weighs 90 pounds. Set up,…

A: An external force that is applied in the direction of the displacement at least partially produces…

Q: Why is it tiring to push hard against a solid wall even if no work is done? A 75 kg firefighter…

A: Q 1) We get tired because we use our energy to contract the muscles. We try to push the wall using…

Q: A horizontal force of 200 N is applied to a 55-kg cart across a 10-m horizontal surface. (a) If the…

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Q: An eighteen-wheeler truck of mass 42.0x10 kg moves a speed of 32.0 m/s on a highway. Determine (a)…

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Q: 2. While training for the upcoming UAAP season, a 60-kg athlete does 30 pushups in a minute,…

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Q: 2. A cart with a mass of 100 kg is filled with 1,800 kg of coal. A force of 14 kN is used to pull…

A: Work done by the force pulling the cart = F * d = 14 * 10^3 * 10.5 = 147000 J Work done by gravity =…

Q: 3. A force of 5.0 N is used to stretch a block attached to a spring from its resting position to a…

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Q: Calculate the work done when a 5.0 kg bag of apples is lifted 1.2 m off the ground.  13 c)…

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Q: 5. Starting from rest, a 5.00-kg block slides 2.50 m down a rough 30.0° incline. The eoeffieient of…

A: Explanation and solution shown in the picture below ?

Q: 2. A spring has a natural length of 10in and a 30lb force stretches it to a length of 12in. Find the…

A: Given, Natural length of the spring = 10 in  1 inch = 0.0254 m Therefore, 10 inch = 0.254 m  F = - K…

Q: 10. A tow truck pulls a car by a cable that makes an angle of 30° to the horizontal. The force…

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Q: How much work is done in moving a 130-kg crate along a rough floor 3.6 m without acceleration if the…

A: Solution: As there is no acceleration, the applied force,F =…

Q: 3. A force of 10 N is applied to a small cart for a distance of 2.0 m. (a) What work is done on the…

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