body of mass 2 Kg, initially at rest, moves under the influence of an external force of magnitude 4 N on plane ground. What is the work done by the force and the change in kinetic energy in the first 10 seconds? a) 400 J, 400 J b) -400 J, 400 J c) 400 J, -400 J d) -400 J, -400 J
Q: "30 kg bear slides, from rest, 8 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…
A: Dear student The Gravitational Potential energy of a particle is given by : U = mgh Where, m = mass…
Q: A 1.5 kg hockey puck initially moving at 4.9 m/s slides 12 m along the ice before coming to rest.…
A:
Q: You can think of the work-energy theorem as a second theory of motion, parallel to Newton's laws in…
A:
Q: You are reshelving books in your dorm room. You lift a book from the ground to the top shelf. The…
A: According to the question, the kinetic energy at the ground and at the final height h(say), the…
Q: A block of mass m = 1 kg is sliding on a horizontal surface with initial velocity vo = 2 m/s. The…
A: Solution: Given: m = mass of block = 1 kg v0 = speed of block = 2ms s = distance in which block is…
Q: A shopper in a supermarket pushes a trolley with a force of 30N directed at an angle of 25° downward…
A: Given : F = 30 N θ = 25° d = 40 m
Q: A 69 kg rollerblader skates across a skating rink floor. The graph below shows the net external…
A: Given, Graph between the net force component and displacement
Q: A factory worker pushes a 30.9 kg crate a distance of 4.0 m along a level floor at constant velocity…
A:
Q: A horizontal force of 400 N is applied to a 50-kg cart across a 10-m level surface. If the cart…
A: Given Horizontal force=400N Mass of cart=50kg Displacement=10m…
Q: The figure below shows a person lifting a box with a mass of 18.9 kg a height of 1.4 m and moving it…
A: First, the person lifts the box up to a height of 1.4 mAnd then moves the box to a distance of 5 m…
Q: George has a body mass of 'm' kg runs up a slope inclined at an angle . When he reaches a vertical…
A:
Q: A 2.00-kg (20.0-N) stone is dropped from a height of 5.0 m, and strikes the ground with a velocity…
A: Given data: Mass (m) = 2.00 kg Weight (mg) = 20.0 N Height (h) = 5.0 m Initial velocity (v0) = 0 m/s…
Q: A 5.0 kg crate is pushed with 50 N of force for 10 s. If the coefficient of static friction between…
A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…
Q: A 18 kg crate is being pushed 7.6 m across a level floor by a 92 N horizontal force. The μk between…
A: Applied force = 92 N distance moved = 7.6 m Frictional force = 0.35 * weight Frictional force = 0.35…
Q: Starting from rest, a box of mass m (24 kg) moves to the right 18.0 m when pulled by a tension force…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: An object is constrained to move along the +y- axis at a constant speed when a variable force begins…
A: Given data: The graph between y-component of the force and displacement in y-direction Required:…
Q: Physics 3 a) How would you demonstrate, using a pen and a sheet of paper, that static friction can…
A: Work done is defined area under Force v/s displacement graph. If force is constant then in vector…
Q: 1. A particle was subjected to a force Fx that varies with position as described by the Fx vs. x…
A: Simple but intersting problem of force and work. Please have a good look
Q: A 32-kg block is pulled along the ground for a distance of 4.9 m by a 57 N force at an angle of 21…
A: d) normal force N = mg - Fsin21° = (32×9.8)-(57×Sin21°) N = 293.17 N Now friction force f = ukN…
Q: A particle was subjected to a force F that varies with position as described by the F. vs. x graph…
A: According to the Newton's second law the net force acting on an object is defined as the product of…
Q: Goliath puts a constant force of F = 4 N i + 3 N j on a 5-kg rock he is throwing towards David. The…
A:
Q: How much work is done by a 500 N rightward force that acts on a boat as it moves 30 m to the left? *…
A: Applied force (F) = 500 N ( in rightwards direction) distance moved (d) = 30 m ( to the left)
Q: a) determine the force exerted on the piano by the man. b) determine the work exerted on the piano…
A: The free-body diagram of the scenario is given as, Given, Mass, m=390 kg, distance it slides, d=…
Q: A 4.20-kg box has an acceleration of 2.10 m/s2 when it is pulled by a horizontal force across a…
A:
Q: A 2 kg rock is thrown upward, with a speed of 5 m/s and returns to the same spot, with the same…
A: Give Mass m = 2 kg Initial velocity is U = 5 m/s in upward direction. Final velocity is V = 5 m/s…
Q: Seo Jun pushes a 40.0-kg boulder 3.2 m along a level floor at constant velocity by pushing…
A:
Q: What is the work required by friction to stop a 6.7 kg block sliding on a table if it initially has…
A:
Q: An airplane flies 120 km at a constant altitude in a direction 30.0° north of east. A wind is…
A:
Q: person pushes a box up an incline with constant force, and after calculating how much work they did…
A: Given work done by the person is greater than the work done by gravity. When we move a body on an…
body of mass 2 Kg, initially at rest, moves under the influence of an external force of magnitude 4 N on plane ground. What is the work done by the force and the change in kinetic energy in the first 10 seconds?
a) 400 J, 400 J
b) -400 J, 400 J
c) 400 J, -400 J
d) -400 J, -400 J
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- B3A 1350-kg car is traveling with an initial speed of 25.0 m/s. Determine the car's speed after -2.20 × 10° J of net work is done on the car. X m/sA 6.50 kg box slides 4) from the top of a ramp to the bottom at a constant speed, as shown in the diagram. constant v= 1.50 m/s h= 1.85 m 0= 28.2° a) How much work is done on the box by the frictional force? b) How much work is done on the box by gravity? c) How much work is done on the box by the normal force? d) What is the coefficient of kinetic friction between the box and the ramp?
- 7. A student in a lab exerts a 25 N force to pull a block a distance of 48 cm. If a total of 11 J of work is done, the angle between the force and the displacement is a. 89° b. 66° d. 24° e. none of the above c. 61° 8. A 102-g sparrow flying at 12.3 m/s wishes to have equal kinetic and gravitational potential energies. The height that will accomplish this is a. 0.315 m b. 0.628 m d. 1.13 m e. 7.72 m c. 0.787 m 9. Earth's mass is 5.98 x 1024 kg. Calculate the value of g at a point 4.8 x 105 km from the centre of Earth. a. 9.8 × 102 N/kg b. 8.3 x 10' N/kg C. 1.7 × 103 N/kg d. 1.7 x 10³ N/kg e. 9.8 × 105 N/kg 10. A piece of paper becomes electrically charged when a charged rod of plastic is placed close to it. This is referred to as a. charging by a conductor b. charging by induction c. charging by an insulator A P d. charging by contact e. charging by electricity 20 cm Ꭰ T 20 cm 11. Four charged spheres, A, D, P, and T are arranged as shown below. Sphere A has a charge of +4.5 × 10*C,…A 11 g particle is moving to the left at 17 m/s. How much net work must be done on the particle to cause it to move to the right at 45 m/s ? Express your answer to two significant figures and include the appropriate units. µA ? W = Value Units Submit Request Answer Provide Feedback Next >A block of mass m = 2.00 kg is pushed a distance d = 7.80 m along a frictionless, horizontal table by a constant applied force of magnitude F = 17.0 N directed at an angle θ = 26.0° below the horizontal as shown in the figure below. a) Determine the work done on the block by the applied force. b) Determine the work done on the block by the normal force exerted by the table. c) Determine the work done on the block by the gravitational force. d) Determine the work done on the block by the net force on the block.
- A 32-kg block is pulled along the ground for a distance of 4.9 m by a 57 N force at an angle of 21 degrees with respect to the horizontal. The coefficient of kinetic friction is 0.21. a) Find the work done (in J) by the applied force. b) Find the work done (in J) by the normal force exerted by the ground. c) Find the work done (in J) by the force of gravity.Please see attached image for question. Thank you0 Question 3 A block of mass m = 1 kg is sliding on a horizontal surface with initial velocity vo = 2 m/s. The block is brought to a stop by kinetic friction in a distance of 4 m. What is the work done by the force of friction acting on the block? 2J O-0.5 J O-2 J 08 J 0.5 J O-8 J 1 pts Question 4 1 pts
- A force F=(4- 3N acts on an object as it moves in the x direction from the origin to S. The work done on the object by the force is Select one: а. 50 J b. 42 J С. 36 J d. 28 JA block of mass 2.7 kg is pushed 2.6 m along a frictionless horizontal table by a constant 21 N force directed 32 degrees below the horizontal. d) Determine the work (in J) done by the force of gravity. e) Determine the work (in J) done by the net force on the block.