A car has initial total mass 50 kg. Gases are ejected backward at relative speed 20 m s⁻¹ at 2 kg s⁻¹; total ejected gas is 20 kg. Coefficient of friction with road is μ = 0.1. Use the variable-mass thrust relation.
Physics · Center of maas , Momentum and Collision · variable mass system
A car has initial total mass 50 kg. Gases are ejected backward at relative speed 20 m s⁻¹ at 2 kg s⁻¹; total ejected gas is 20 kg. Coefficient of friction with road is μ = 0.1. Use the variable-mass thrust relation.
Sub-question 1
Car starts moving after:
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Sub-question 2
Maximum speed of the car is: (Take ln(4/3)=0.28)
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Sub-question 3
Car stops after, measured from the instant it starts moving:
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