Question

A man holding a rock sits on a sled that is sliding across a frozen lake...

A man holding a rock sits on a sled that is sliding across a frozen lake (negligible friction) with a speed of 0.490 m/s. The total mass of the sled, man, and rock is 97.5 kg. The mass of the rock is 0.320 kg and the man can throw it with a speed of 17.0 m/s. Both speeds are relative to the ground. Determine the speed of the sled in m/s if the man throws the rock forward (i.e. in the direction the sled is moving).

What is the speed of the sled in the previous question if the rock is thrown in the opposite direction?

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 wagon is rolling forward on level ground. Friction is negligible. The person sitting in the...
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 97.5 kg. The mass of the rock is 0.317 kg. Initially the wagon is rolling forward at a speed of 0.460 m/s. Then the person throws the rock with a speed of 16.3 m/s. Both speeds are relative to the ground. Find the speed of the wagon after the...
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the...
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 99 kg. The mass of the rock is 0.30 kg. Initially the wagon is rolling forward at a speed of 0.46 m/s. Then the person throws the rock with a speed of 15 m/s. Both speeds are relative to the ground. Find the speed of the wagon after the...
A 41.0-kg child finds himself trapped on the surface of a frozen lake, 10.0 m from...
A 41.0-kg child finds himself trapped on the surface of a frozen lake, 10.0 m from the shore. The child slips with each step on the frictionless ice and remains the same distance from the shoreline. Egged on by his parents, he throws a 0.300-kg ball he is carrying toward the center of the lake with a horizontal speed of 2.00 m/s, in the direction opposite that of the shoreline. (The speed of the ball is relative to the lake.)...
You are stuck in the middle of a frictionless frozen lake without any reception. To get...
You are stuck in the middle of a frictionless frozen lake without any reception. To get back to the shoreline, you decide you must throw your phone away. You throw it with a velocity of 20.0 m/s, at an angle of 10° above the horizontal. If your mass is 20.0 kg and your phone is 100 g, what is your speed after you throw your phone
a 90 kg mini car moves at 10 m/s across fairly smooth ice on a frozen...
a 90 kg mini car moves at 10 m/s across fairly smooth ice on a frozen lake toward a rock with a mass of 6 kg. when thrown it becomes lodged in the mini car. How fast would the rock need to be moving to stop the mini cars approach on impact? Include a useful sketch of the pre/post situation. If the rock is  thrown with a velocity of 200 m/s, what is the total kinetic energy of the mini car/rock...
1. A loaded gun is dropped on a frozen lake. The gun fires, with the bullet...
1. A loaded gun is dropped on a frozen lake. The gun fires, with the bullet going horizontally in one direction and the gun sliding on the ice in the other direction. The bullet's mass is 0.04 kg, and its speed is 305 m/s. If the gun's mass is 1.8 kg, what is its speed (in m/s)? ______m/s 2. A 37 kg child uses a pogo stick to bounce up and down. The spring constant, k, of the toy equals...
According to Wikipedia, the Skeleton is a winter sliding sport in which a person rides a...
According to Wikipedia, the Skeleton is a winter sliding sport in which a person rides a small sled, known as a skeleton bobsled, down a frozen track while lying face down and head-first. The sport and the sled may have been named from the bony appearance of the sled. Like the bobsleigh, the race begins with a running start from the opening gate at the top of the course. The maximum combined mass of the athlete + sled is 115...
A student sits on a freely rotating stool holding two dumbbells, each of mass 2.91 kg...
A student sits on a freely rotating stool holding two dumbbells, each of mass 2.91 kg (see figure below). When his arms are extended horizontally (Figure a), the dumbbells are 1.03 m from the axis of rotation and the student rotates with an angular speed of 0.758 rad/s. The moment of inertia of the student plus stool is 2.61 kg · m2 and is assumed to be constant. The student pulls the dumbbells inward horizontally to a position 0.297 m...
A)A 2.9 kg block of wood sits on a table. A 0.0035 kg bullet, fired horizontally...
A)A 2.9 kg block of wood sits on a table. A 0.0035 kg bullet, fired horizontally at a speed of 440 m/s, goes completely through the block, emerging at a speed of 140 m/s.What is the speed of the block immediately after the bullet exits? Answer in m/s B)A small, 0.43 kg cart is moving at 1.4 m/s on an air track when it collides with a larger, 5 kg cart at rest. After the collision, the small cart recoils...
ch 6 1: It is generally a good idea to gain an understanding of the "size"...
ch 6 1: It is generally a good idea to gain an understanding of the "size" of units. Consider the objects and calculate the kinetic energy of each one. A ladybug weighing 37.3 mg flies by your head at 3.83 km/h . ×10 J A 7.15 kg bowling ball slides (not rolls) down an alley at 17.5 km/h . J A car weighing 1260 kg moves at a speed of 49.5 km/h. 5: The graph shows the ?-directed force ??...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT