A 13 kg mass object initially has 2500 J of kinetic energy. -1200 J of net work is then done on the object by a force opposite the direction of the object's motion. What is the final speed of the object? A. 14 m/s B. 24 m/s C. 20 m/s D. 17 m/s

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: Work-Energy Theorem, implies that Work done by a variable force, F(x) on an object as it moves is…

A: Introduction: The work done is define as the dot product and applied force and displacement of the…

Q: An accelerating object of mass m=2 kg is fired with an initial speed v=8 m/s at a starting point. If…

A: Given data: Mass m =2 kg Velocity v=8 m/s2. Final Kinetic energy =268 J

Q: How much work (in J) must be done to lift a stack of bricks, which has a mass of 50 kg, from the…

A: Given data The given mass is m=50 kg The height is h=8 m The accleration due to gravity is g=10 m/s2…

Q: How much work is needed to change the speed of a 2375 kg sport utility vehicle from 15.0 m/s to 60…

A: Given data:  Mass (m) = 2375 kg Initial velocity (Vi ) = 15.0 m/s Final velocity (Vf) = 60 m/s…

Q: 2. The graph shows the x component of the net force on an object versus position. Find the work done…

A: Note: As per the guidelines, we can attempt only the 1st three sub-parts The work done is given as,…

Q: A farmer shoves a 1.250-kg block from the bottom of a frictionless 30.0° inclined plane. She…

A: Given that mass of the block and inclination angle and also given the value of work. Then We have to…

Q: 2. A 10-kg mass is dragged on a horizontal frictionless surface by a force F(x) = 2x + 1 (N) that…

A:

Q: A 2.00-kg ball has zero potential and kinetic energy. Maria drops the ball into a 10.0-m-deep well.…

A: From, the conservation of energy,

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: You are using a rope to lift a 14.5 kgkg crate of fruit. Initially you are lifting the crate at…

A: given:-      mass of crate of fruit = 14.5 kg    Initial velocity of crate (u) = 0.500 m/s  Tension…

Q: 1. A 5.5 kg bird is flying 12 m above the ground. Potential energy of bird is calculated to be ? use…

A: Given that,Mass of bird : m = 5.5 (kg)Height on which bir flying : h =12 (m)Here we need to find the…

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

A: Given an object moves from point A to B.One force is nonconservative and work done is 40 J. other…

Q: 13. Through what vertical distance does the block rise as it slides up to its highest point on the…

A: Given: Mass,m=500g=500×10-3kgAcceleration due to gravity,g=9.8m/s2Coefficient of kinetic…

Q: What is the kinetic energy of a 1400 kg car traveling at 5.3 m/s? A. 7.4 x 103 J B. 2.0 x 104 J…

A:

Q: Q05. If an object goes to the left, but one of the forces pushes it to the right, opposing its…

A:

Q: A 5.5 kg bird is flying 12 m above the ground. Potential energy of bird is calculated to be ?  use g…

A: Given, mass of the bird m = 5.5 Kg Height on which bird flying h = 12 m We know the expression for…

Q: A certain truck has twice the mass of a car. They both move with the same speed. If the kinetic…

A:

Q: An accelerating object of mass m=17 kg is fired with an initial speed v-8 m/s at a starting point.…

A:

Q: A particle experiences a variable force F= (2+2x+ x^2)N that acts in the x direction. The work done…

A:

Q: An accelerating object of mass m=12 kg is fired with an initial speed v;-5 m/s at a starting point.…

A: Given: The mass of the body is 12 kg. The initial velocity of the object is 5 m/s. The final kinetic…

Q: Dr. B is bouncing a 0.245 kg playground ball in his office one day. He drops the ball from a height…

A:

Q: Find the magnitude of the net torque (in N.m) on the wheel shown in the Figure about the axle…

A:

Q: A 60-N constant force exerted on a 10-kg object for 12 seconds. The initial velocity of an object is…

A: (a) Calculate the acceleration of the object due to the applied force. a=Fm=60 N×1 kg·m/s21 N10 kg=6…

Q: A roller coaster of mass 800 kg is moving with a speed of 20.0 m/s at position A. At position C, the…

A: Given: The mass of the roller coaster is 800 kg. The final velocity of the roller coaster is 27 m/s.…

Q: You push a shopping cart a certain distance with a certain force. If you apply that same force, but…

A: According to question we need to find--- work done ?

Q: 5. Sheryl is driving along the highway in an 894 kg car. She initially drives at a velocity of 50…

A: mass m = 894 kg initial velocity U = 50 m/s after 35/5 sec velocity increases by 70 % of the initial…

Q: A 2500 kg car accelerates from rest to a velocity of 30.0 m/s in 8.00 seconds. The work done by the…

A:

Q: A block of mass 2.0 kg is moving to the left and changes its speed from 1.0 m/s to 3.0 m/s. Match…

A:

Q: 8. Find the work done on the block by friction, assuming that the block makes it all of the way…

A: The block is held against one end of the spring, such that the spring is compressed by a distance of…

Q: An accelerating object of mass m=14 kg is fired with an initial speed v-2 m/s at a starting point.…

A:

Q: An object moves from point A to point B under the influence of only two forces. Between points A and…

A: Sum of work done by all forces= change in Mechanical energy…

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.