Question

1. A bottle of mass 0.5 kg is given an initial velocity of 2.3 m/s on...

1. A bottle of mass 0.5 kg is given an initial velocity of 2.3 m/s on a rough, horizontal surface. Draw a diagram showing all of the forces on the bottle as it moves across the surface. The bottle comes to rest after travelling a distance of 1.3 m. Calculate the time taken to come to rest, the deceleration and the friction force.

2. Block A has a mass of 4 kg and block B has a mass of 6 kg. The blocks collide and stick together. Compared to before the collision, is the total momentum of the two blocks after the collision the same or different? Is the total kinetic energy after the collision the same or different? Explain your answers. After the collision, what is the ratio of the kinetic energy of block A to the kinetic energy of block B?

3. A pump raises 50 kg of water through a vertical distance of 20 m and forces the water out with a speed of 10 m/s. If the water is initially static, how much work has been done by the pump? Calculate the power of the pump if it takes 12 seconds for the water to be expelled.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A blue block has a mass of 0.92 kg and is stationary on a horizontal frictionless...
A blue block has a mass of 0.92 kg and is stationary on a horizontal frictionless surface. It is struck with a rubber mallet causing it to slide with a speed of 3.1 m/s on the horizontal surface. The mallet is in contact with the block for 23 milliseconds. The blue block collides with a red block with a mass of 0.75 kg and the two blocks stick together. The two blocks slide up a long smooth incline and come...
Mass A (8.5 kg) slides across a frictionless surface with a velocity of 6 m/s in...
Mass A (8.5 kg) slides across a frictionless surface with a velocity of 6 m/s in the positive direction. Mass B (8.5 kg) slides across the same surface in the opposite direction with a velocity of ?12 m/s. The two objects collide and stick together after the collision. Calculate the center-of-mass velocity (in m/s) of the system both before and after the collision. (Indicate the direction with the sign of your answer.)
Block A of mass (mA) = 9.0 kg with an initial speed (uA) = 2.1 m/s...
Block A of mass (mA) = 9.0 kg with an initial speed (uA) = 2.1 m/s collides with a Block B of mass (mB) = 27 kg which had an in initial speed (uB) = 0.50 m/s, as shown int the figure. The surface is frictionless, and the blocks suddenly collide and couple. After the collision, Find the common speed (Vf) that the blocks travel with. a) 0.5 m/s b) 0.9 m/s c) 0.1 m/s d) 0.6 m/s
4.) A cart with mass m = 1:2 kg touches a block with mass M =...
4.) A cart with mass m = 1:2 kg touches a block with mass M = 7:3 kg. Both blocks sit on a horizontal surface; the wheel of the cart eliminates the friction with the surface; the coecient of kinetic friction between the block M and the surface is not known. The box and cart are initially at rest. a) We exert a horizontal push P = 63:3N and move the block-cart system through the distance s = 0:87 m....
A block with mass m1 = 10 kg moving at 5 m/s collides with another block...
A block with mass m1 = 10 kg moving at 5 m/s collides with another block with mass m2 = 20 kg moving the other way at 1 m/s. The two blocks stick together after the collision. (a) What is their common final velocity, vf ? (b) The blocks collide again, this time elastically. Assume that the outgoing blocks move away from the collision along the initial line of approach. What are the final velocities, v1f and v2f ?
Block 1, of mass m1 = 12.3 kg , moves along a frictionless air track with...
Block 1, of mass m1 = 12.3 kg , moves along a frictionless air track with speed v1 = 13.0 m/s . It collides with block 2, of mass m2 = 39.0 kg , which was initially at rest. The blocks stick together after the collision. Find the magnitude pi of the total initial momentum of the two-block system. Find vf, the magnitude of the final velocity of the two-block system. What is the change ΔK=Kfinal−Kinitial in the two-block system's...
Block 1, of mass m1 = 1.70 kg , moves along a frictionless air track with...
Block 1, of mass m1 = 1.70 kg , moves along a frictionless air track with speed v1 = 29.0 m/s . It collides with block 2, of mass m2 = 59.0 kg , which was initially at rest. The blocks stick together after the collision. (Figure 1) Find the magnitude pi of the total initial momentum of the two-block system. Find vf, the magnitude of the final velocity of the two-block system. What is the change ΔK=Kfinal−Kinitial in the...
Block 1, of mass m1 = 5.30 kg , moves along a frictionless air track with...
Block 1, of mass m1 = 5.30 kg , moves along a frictionless air track with speed v1 = 31.0 m/s . It collides with block 2, of mass m2 = 51.0 kg , which was initially at rest. The blocks stick together after the collision. A.Find the magnitude pi of the total initial momentum of the two-block system. B.Find vf, the magnitude of the final velocity of the two-block system. C. What is the change ΔK=Kfinal−Kinitial in the two-block...
Car #1 with a mass of 1.50 x 103 kg is travelling east at a speed...
Car #1 with a mass of 1.50 x 103 kg is travelling east at a speed of 25.0 m/s. It collides in the middle of an intersection with Car #2 which has a mass of 2.50 x 103 kg and enters the intersection travelling north at a speed of 20.0 m/s. (a) Find the magnitude and direction of the velocity of the wreckage, assuming that after the collision the two cars stick together and that frictional forces can be neglected....
A bullet of mass ma= 0.01 kg moving with an initial speed of va= 200 m/s...
A bullet of mass ma= 0.01 kg moving with an initial speed of va= 200 m/s embeds itself in a wooden block with mass mb= 0.99 kg moving in the same direction with an initial speed vb= 2.6 m/s. What is the speed of the bullet-embedded block after the collision? What is the total kinetic energy of the bullet and block system before and after the collision?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT