EA projectile is.threwn from the tapof acliffwitha initial speed of 25 m/s atan angle ck 60°up From the tap horizental. If the projectile lands lCom from the base ct the ClifF hew tallis the ClifF

Q: Work and Energy 7. A 5000kg elevator starts from rest accelerates uniformly to a constant speed of…

A:

Q: A man walks 96 m through the pathway wearing a 7 kg bag on his back. How much work, in joules, does…

A: Given data- Displacement's magnitude is d=96 m Mass of the bag is m=7 kg

Q: car of mass m is negotiating a circular turn of radius R and speed v. The forces on the car are…

A: Given, A car of mass m is negotiating a circular turn of radius R and speed v

Q: Work equals force times

A: Work is a measure of the energy used in applying a force to move an object.

Q: Am = 0.60 kg mass attached to a spring constant k= 90 N/m is undergoing simple harmonic motion on a…

A: Given data:  Mass (m) = 0.60 kg Spring constant (k) = 90 N/m Amplitude (x) = 0.1 m Required:…

Q: A 82.0 kg person climbs stairs, gaining 4.00 meters in height. Find the work done (in J) to…

A: Work done in moving an object by some height h, equals the change in potential energy of the object.…

Q: A gardener pushes down on a lawnmower with a force of 35.0 N to make it move forward. The angle…

A:

Q: A boy is pulling his sister in a wagon , as shown in the figure . He exerts a force of F = 47N at an…

A: Given Force applied = F = 47 N angle above the horizontal= 30° displacement travel = 31.5 m We have…

Q: Calculate the work done in N.m if a force of 18 N pushes a mass 5 kg by 8 meters.

A: Assume that the direction of force and the direction of displacement are the same. Work done by the…

Q: The following figure shows the forces acting on an objecy. What is the net force? Be sure to show…

A: Given data:  Three forces are acting on the object F1 = 87 N, towards right F2 = 47 N, towards right…

Q: 2. The position of a particle between t = 0 and t = 2.00s is given by r(t) = (3.00 m/s³)³-(10.0…

A: Given:- equation of motion is given as  x(t) = 3.00 m/s3t3-10.00m/s3t2+9.00m/st This is a position…

Q: What is the net force of a 5.0-N force and an 8.0-N force acting on an object for each of the…

A: Given values:Force, F1 = 5.0 N       Force, F2 = 8.0 N

Q: Rupel pushes a box 7.00 m by applying a 25.0-N horizontal force. What work does she do?

A: Given, Force, F = Displacement, s =

Q: Gurtej was driving his car at 120 km/hr when he decides to brake. His car glides to rest over a 26.4…

A: Write the given values with the suitable variables. u=120 km/hr=120×10003600 m/s=33.33 m/sv=0…

Q: A cannon fires a projectile with a speed of 110 m/s at a 30° to the horizontal. The opening of the…

A: Speed of the projectile = v = 110m/s Mass of the projectile = m = 7.0 kg Angular Velocity of the…

Q: when released from rest, a150 g block slides dewn the path shown below, reaching the bottom with a…

A: Given data *The mass of the block is m = 150 g = 150 × 10-3 kg *The final speed of the block is v =…

Q: = (x(x + y), xy²) F = to move a particle from the origin along the x-axis to (1,0), then along the…

A:

Q: A person of mass 85.0 kg is standing on a weighing scale inside an elevator. Three cases are shown…

A:

Q: A soccer ball is kicked horizontally off a 15.0 m tall roof with a velocity of 75.5 km/h. Assume no…

A:

Q: Natalia lifts a bag of groceries 0.50 m by exerting a force of 72 N. How much work did she do on the…

A: Given data:  Displacement (d) = 0.50 m Force (F) = 72 N Required: The work done on the bag

Q: The following figure shows the forces acting on an objecy. What is the net force? Be sure to show…

A: Since the two forces are acting in the same direction, so the net force is the sum of the forces.…

Q: Is work a vector quantity? In other words does it need a direction associated with it ?

A: To define work we just need magnitude and not direction. Also work is the dot product of two vector…

Q: Why are solar power and wind power somewhat unreliable?

A: No, work done is not a vector quantity rather it is a scalar one. as it is defined by the dot…