Movement and directional force

mgba_78 | 21:48 Sun 25th Mar 2007 | Science

3 Answers

Right here goes.........................

There is a lorry travelling at 100mph with a trailer on the back and in the trailer there is a car.
If the car floors it and drives out of the trailer down a ramp onto the road what will happen to the car?

Explain how spilled water can be mopped up by a rag

Please explain

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sddsddean

Lets assume the car gets up to 30mph at the bottom of the ramp. It will hit the road doing 70 mph backwards. In reality the driver would probably lose control and go into a spin, but lets assume its The Stig off Top Gear and he keeps it in a straight line. If he is still 'flooring it' the rear wheels will be spinning, gradually slowing the cars reverse speed until the car comes to rest then accelerates forwards. All this is conjecture, as in reality (as I said) a wreck would probably ensue.

bigbanana

Hire a DVD of "The Italian Job" and see for some of the possible problems that arise for yourself.

Before you even begin to consider the speed of the car on leaving the lorry, you need to appreciate that the survival of the vehicle and driver will depend upon whether the car is reversed out or driven out front first simply because a car facing the oncoming vehicles when it leaves the lorry cannot accelerate away fast enough in reverse gear.