A 2.46 kg block moves along a frictionless surface with a speed of 7.83 m/s when it encounters a rough shallow hill, whose sides have a length of l=5.21 m. The hill is low enough so that the block can make it over the hill. Because the surface of the hill is rough (shown in orange in the figure), the block experiences a frictional force of 2.23 N while on the hill. a) What is the speed of the block after it traverses the hill?

Q: A 2.78kg crate starts from rest and slides down a frictionless ramp whose angle is 14.4° with the…

A: Every object on Earth is being pulled down to the surface of the Earth by virtue of the…

Q: A 7.80 g bullet is initially moving at 470 m/s just before it penetrates a tree trunk to a depth of…

A: Given Data: The mass of the bullet is, m = 7.80 g. The initial velocity is, v = 470 m/s. The…

Q: 6. A 25.0 kg object is accelerated from rest through a distance of 6.0 m in 4.0 s across a level…

A: Work done in moving an object is given by,W= F×d×cosθ......(1)where, F is force applied…

Q: A 7.80 g bullet is initially moving at 530 m/s just before it penetrates a block of solid rubber to…

A: Given data:Mass of the bullet (m) = 7.8 gInitially moving (v) = 530 m/sDepth of penetration (d) =…

Q: A force F = (cx - 3.00x2)î acts on a particle as the particle moves along an x axis, with F in…

A: Work-energy theorem states that the work done by the sum of all forces acting on a particle equals…

Q: A daredevil on a motorcycle leaves the end of a ramp with a speed of 38.9 m/s as in the figure…

A: KEBottom-KEtop=PE0.5mvbottom2-0.5mvtop2=mghh=0.vbottom2-0.5vtop2g

Q: Select which of the following statements are True or False. Assume Ne VA particle's kinetic eñergy…

A: 1. A particles Kinetic energy can change without having any net work done it. Answer: False…

Q: man does 4,720 J of work in the process of pushing his 2.70 103 kg truck from rest to a speed of v,…

A:

Q: A cyclist, starting from rest, applies a horizontal force of F=372 N to his bicycle, moving across…

A: The objective of the question is to calculate the work done by the cyclist, the speed of the bicycle…

Q: a. Discuss, with diagrams, the kinematics and dynamics of an object undergoing curvilinear motion. -…

A: An object is said to be in motion if its position changes with respect to time. When a particle is…

Q: A 400 N student pushes a 500N trunk a distance of 8.00 m along a straight line, by applying a…

A: Solution:-Given thatWeight of trunk (W)=500 NDisplacement (d)=8 mApplied force (F)=600 Ninitial…

Q: A book is pushed across a horizontal rough table at a steady speed for a certain distance. When…

A: Block is moving on frictional surface with constant speed . Surface is horizontal ,so there is no…

Q: A 65.0 kg base runner begins his slide into second base when he is moving at a speed of 4 m/s. The…

A: (a) Mechanical energy lost by friction is equal to the change in kinetic energy ∆E=12m∆v2=1265.0 kg4…

Q: A 30.0-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of…

A:

Q: C4. In the general expression for the work W by a force F, W = F. ds, the vector ds is... a small…

A: Answer C4: The correct options is C i.e, a small element of displacement of the point of application…

Q: Using energy considerations, calculate the average force (in N) a 69.0 kg sprinter exerts backward…

A:

Q: block is at rest on a horizontal frictional surface. A string is attached to the block, and is…

A: Please post the remaining questions separately!

Q: Jessica pulls her sister Katie in a wagon. The wagon and Katie together have a mass of 28.5 kg.…

A:

Q: A 5.00 kg chair is sliding sideways at a constant velocity. You are pushing the chair with a 40.0 N…

A: Mass of chair (m) = 5 kg Velocity = constant Force (F) = 40 N distance (d) = 3.50 m

Q: An applied force of 122 N is exerted horizontally on an 28 kg box of cat in yulin. The coefficient…

A:

Q: Boxes A and B in (Figure 1) have masses of 12.0 kg and 5.0 kg, respectively. The two boxes are…

A: Given mass of box A=mA=12kg           mass of box B=mB=5kg.

Q: A 13000 N elevator is lifted with a force of 16000 N against 2000 N of friction a distance of 19…

A:

Q: Problem 5: Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined…

A:

Q: In the figure, a 3.7 kg block slides along a track from one level to a higher level after passing…

A:

Q: A 2.10 kg block is pulled up force on the block from th- Number i

A:

Q: A 32.0-kg  crate, starting from rest, is pulled across a floor with a constant horizontal force of…

A: Image-1

Q: A person pushes a 15.0- kg shopping cart at a constant velocity for 20.0 m. She pushes in a…

A:

Q: - 218.2J 9. A tow truck pulls a car 4.40 km along a horizontal roadway using a cable having a…

A:

Q: A toboggan starts from rest on parliament hill which is 5.0 m above road level. The toboggan slides…

A:

Q: 2. After one month of taking a literature class, a first-year Bard student decides to dispose of all…

A:

Q: A sledder with a total mass 40.0 kg (including the sled) slides down a 10.0m hill that is 20◦ from…

A: i. Kinetic energy of the sledder at the bottom of hill Ek=12mv2=12(40.0 kg)5.5 m/s2=605 J

Q: m h2 h1

A: mass of block (m) = 10 kg Distance along the flat muddy section (d) = 1 m coefficient of kinetic…

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.