Acar having a total mass of 1.2 tonne is propelled by an engine which develops a maximum power of27 kw at the road wheels the road and other resistances may be taken as constant at 70 n/tonne. if the car starts from rest and ascends a gradient of 1 in 12, determine: the acceleration when moving at a speed of 18 km/h, the maximum attainable speed

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.