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1. Tractor does ot brake
2. car does not move at t
3. car does not decelerate with 5 m/s^2
and on top of that: 1.78 can not satisfy your equation for both coefficients of t^2 (5/2 c.q. 10/2).
2. car does not move at t
3. car does not decelerate with 5 m/s^2
and on top of that: 1.78 can not satisfy your equation for both coefficients of t^2 (5/2 c.q. 10/2).