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An engine can pull 4 coaches at a maximum speed of 20m/s. mass of enngine is twice that of every coach. assume resistive forces to be proportional to the weight. calculate maximum speeds of engines when it pulls 12 and 6 coaches respectively. |
| Answer» An engine can pull 4 coaches at a maximum speed of 20m/s. mass of enngine is twice that of every coach. assume resistive forces to be proportional to the weight. calculate maximum speeds of engines when it pulls 12 and 6 coaches respectively. | |