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Honors Physics homework question - help please?

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You are able to figure out how much energy is in the truck based on its weight and also its velocity. Gravity applies a constant acceleration of 9.

And also you are told the truck came to a halt at a point 10m higher than it previously was. This means part of the kinetic energy from the truck went towards moving the truck up 10m [IE, converted to potential energy]. Since the truck comes to a halt the remaining energy then has all been converted to thermal energy as a result of friction IE, truck driver applied the breaks.

Also assume ideal conditions; asusme air resistance plays no role, assume the engine didnt get thrown into a lower gear, etc etc etc. Also the answer would probably be in Joules, or KiloJoules , not Kelvin since you dont know the specific heat of the truck or anything like that. Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

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We ban all bots. I put it in and it says "your answer either contains an incorrect additive numerical constant or is missing one".

It looks like he made a calculation error somewhere. When I evaluate his expression, I get 1. Use of this site constitutes acceptance of our User Agreement and Privacy Policy. Log in or sign up in seconds. Submit a new text post. Please try Google before posting. The title should be of the form "[Level and Discipline] General Topic. What does your instructor want you to accomplish? When your question has been answered, please edit the post's flair to "answered.

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Copied questions without context or explanation. Are you sure you want to delete this answer? Same as the other question I answered for you. COnservation of momentum is the key. If things happen in opposite directions, you need to have a negative sign in there too. So her momentum is going to decrease. If she throws a snowball 0. So her momentum drops by 4.

The mass of the skated didn't change, so divide by 65kg to get 2. She is still going to the right, so this is still a positive number.

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Dec 01,  · A kg skater moving to the right w/ a velocity of m/s throws a kg snowball to the right with a velocity of m/s relative to the ground a) what is the velocity of the ice skater after throwing the snowball? disregard the friction between the skates and the ice b) a second skater initially at rest with a mass of kg catches the snowball. what is the velocity of the second.

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