Toboggan hill#

Santiago (75 \(kg\)) slides on their toboggan down a hill. The hill is 123 \(m\) long and at an angle of 21\(^\circ\) to the horizontal. They feel a friction force from the snow \(F\_{fr} =\) 70 \(N\) and another force from the wind \(F\_{wind} =\) 17 \(N\) blowing 24\(^\circ\) below the horizontal. The system is Santiago and their sled.

Part 1#

How much work is done by gravity by the time Santiago gets to the bottom of the hill?

Answer Section#

Please enter in a numeric value in \(kJ\).

Part 2#

How much work is done by friction by the time Santiago gets to the bottom of the hill?

Answer Section#

Please enter in a numeric value in \(kJ\).

Part 3#

How much work is done by the wind by the time Santiago gets to the bottom of the hill?

Answer Section#

Please enter in a numeric value in \(kJ\).

Part 4#

If Santiago’s inital speed at the top of the hill is \(v =\) 2 \({m\over s}\), what is their speed at the bottom of the hill?

Answer Section#

Please enter in a numeric value in \(m/s\).

Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.