A child drags her toy box (m = 4 kg) up a hill by applying a force = 251 + 3j(N). The surface of the hill is rough where the coefficient of kinetic friction is ui = 0.34. At the beginning of the hill, her speed is 1.5 m/s. Taking upward direction along the surface of the incline as the positive x-direction, answer the following questions. a) What is the work done by the child's force for the entire track? b) What is the work done by friction? c) What is her speed at the top of the track?
A child drags her toy box (m = 4 kg) up a hill by applying a force = 251 + 3j(N). The surface of the hill is rough where the coefficient of kinetic friction is ui = 0.34. At the beginning of the hill, her speed is 1.5 m/s. Taking upward direction along the surface of the incline as the positive x-direction, answer the following questions. a) What is the work done by the child's force for the entire track? b) What is the work done by friction? c) What is her speed at the top of the track?
Related questions
Question
Transcribed Image Text:A child drags her toy box (m = 4 kg) up a hill by applying a force F = 251 + 3j(N). The surface of the
hill is rough where the coefficient of kinetic friction is ux = 0.34. At the beginning of the hill, her speed is 1.5 m/s.
Taking upward direction along the surface of the incline as the positive x-direction, answer the following questions.
a) What is the work done by the child's force for the entire track?
b) What is the work done by friction?
e) What is her speed at the top of the track?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 5 steps with 7 images
