A 25 kilogram mass is uniformly accelerated on a horizontal smooth frictionless surface from 2 meters...

A 25 kilogram mass is uniformly accelerated on a horizontal smooth frictionless surface from 2 meters per second to 10 meters per second in 4 seconds.

A. So how much work is done? (energy based)

B. How much power did this require?

C. What was the momentum change?

D. If the frictionless surface is tilted to become a ramp and the mass's elevation changes by 2 meters while it was being accelerated the same amount, how much additional work was done?

E. If the above box was placed on a different ramp inclined at 15 degrees and does not slide what is the effective coefficient of static friciton?

Solutions

Expert Solution

The solution is given below.

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

A 25-gram block is resting on a horizontal, frictionless surface and is attached to a horizontal...

A 25-gram block is resting on a horizontal, frictionless surface and is attached to a horizontal spring of k = 210 N/m. The spring is stretched so that the block is 27 cm away from the spring’s equilibrium position and released from rest. a) What is the velocity of the block when it passes through the equilibrium point? b) At what distance from equilibrium is the spring’s potential energy equal to the block’s kinetic energy? c) Suppose the block has...

A 5.0 kg mass is initially at rest on a horizontal frictionless surface when a horizontal...

A 5.0 kg mass is initially at rest on a horizontal frictionless surface when a horizontal force along an x axis is applied to the block. The force is given by ? ⃗(?) = (6.0?2 − 2?3)?̂, where the force in in newtons, x is in meters, and the initial position of the block is x = 0. (a) What is the work done in moving the block from x = 1.0 m to x = 3.0 m? (b) What...

A mass; m1 = 64 g, sits on a frictionless horizontal surface, and is attached to...

A mass; m1 = 64 g, sits on a frictionless horizontal surface, and is attached to a spring of spring constant k = 51 N/m. The other end of the horizontal spring is attached to a wall; the system is in equilibrium. Another mass; m2 = 18 g, strikes the stationary mass m1, and sticks to it. As a result, the spring is compressed by a distance of 24.5 cm before the masses come to a momentary stop. a) How...

(question1- )A 5 kg mass is attached to a spring on a horizontal frictionless surface. the...

(question1- )A 5 kg mass is attached to a spring on a horizontal frictionless surface. the elastic constant of the spring is 48.7 n/m if the mass is 31.6 cm right (+) of the equilbrium point and moving at speed 4.8 m/s find the total mechanical energy.? ( question2-) A 5 kg mass is attached to a spring on a horizontal frictionless surface. the elastic constant of the spring is 30.3 n/m .if the mass is 24.5 cm right (+)...

A block of mass m1 travels at a speed of v0 on a frictionless horizontal surface...

A block of mass m1 travels at a speed of v0 on a frictionless horizontal surface when it comes upon a second block of mass m2 which is initially motionless. Block m2 has a massless spring with spring constant k in front of it. a. Explain why the linear momentum of the system of two blocks and spring is or is not conserved during the collision. b. Explain why the mechanical energy of the system of two blocks and spring...

A textbook of mass 2.00kg rests on a frictionless, horizontal surface. A cord attached to the...

A textbook of mass 2.00kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.100m , to a hanging book with mass 2.98kg . The system is released from rest, and the books are observed to move a distance 1.15m over a time interval of 0.850s

A mass resting on a horizontal, frictionless surface is attached to one end of a spring;...

A mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. It takes 3.7 J of work to compress the spring by 0.14 m . If the spring is compressed, and the mass is released from rest, it experiences a maximum acceleration of 12 m/s2. Find the value of the spring constant. Find the value of the mass.

10.42 . CP A small block on a frictionless, horizontal surface has a mass of 0.0250...

10.42 . CP A small block on a frictionless, horizontal surface has a mass of 0.0250 kg. It is attached to a massless cord passing through a hole in the surface (Fig. E10.42). The block is originally revolving at a distance of 0.300 m from the hole with an angular speed of The cord is then pulled from below, shortening the radius of the circle in which the block revolves to 0.150 m. Model the block as a particle. (a)...

Two blocks on a frictionless horizontal surface are on a collision course.One block with mass 0.25...

Two blocks on a frictionless horizontal surface are on a collision course.One block with mass 0.25 kg moves at 1 m/s to the right collides with a 0.5 kg mass at rest and the two masses stick together. What is the final speed of the blocks after the collision? a) -0.33 m/s b) +0.33 m/s c) 3.27 m/s d) 0.67 m/s e) 0.25 m/s

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with...

On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. Immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30

Subjects