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(5%) Problem 14: Consider the kinetic energy of a 20500-kg truck moving at 92.5

ID: 2031570 • Letter: #

Question

(5%) Problem 14: Consider the kinetic energy of a 20500-kg truck moving at 92.5 km/h and that of an 95-kg astronaut in orbit moving at 26000 km/h D What is the ratio of the kinctic encrgy of the truck to the kinctic encrgy of the astronaut? Grade Summary Deductions Potential 0% 100% cosO tan) acosO acotan0 sinh0) cosh0tanh0 cotanh Submissions Attempts remaining: 5 (10% per attempt) detailed view sin cotan)asi CoS 0 Degrees Radians Submit Hint Hints: 5% deduction per hint. Hints remaining: 1 Feedback: 0%-deduction per feedback.

Explanation / Answer

Ratio of kinetic energy

Ratio= mv^2/MV^2

Ratio= 20500*92.5^2/ 95*26000^2

Ratio = 0.00273