(1096) Problem 5: A car moving at 12 m/s crashes into a tree and stops in 1.17 s
ID: 2036629 • Letter: #
Question
(1096) Problem 5: A car moving at 12 m/s crashes into a tree and stops in 1.17 s. The mass of the passenger inside is 69 kg Calculate the magnitude of the force, in newtons, that the seat belt exerts on the passenger in the car to bring him to a halt. Grade Summa Deductions Potential ry 0% 100% cosO tan() | ? Submissions Sin Attempts remaining: 20 (090 per attempt) detailed view acos cotanasin0 atan acotan sinhO cosh0 tanh0 cotanh0 END Degrees Radians Submit Hint Hints: -deduction per hint. Hints remaining:? Feedback: 5% deduction per feedback.Explanation / Answer
v = u + a t
0 = 12 + (a * 1.17)
a = -12 / 1.17
acceleration, a = -10.26 m/s2
Force = m |a|
= 69 * 10.26
magnitude of force = 707 N
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