Homework Help: mechanics-physics

Posted by precious on Saturday, January 5, 2013 at 1:52pm.

A lorry of mass 1000kg moving initially at 10m/s increases to 25m/s. In 5sec the on the lorry is 15,000Newtons; calculate:
(a) Acceleration
(b) The distance covered

mechanics-physics - drwls, Saturday, January 5, 2013 at 2:56pm
You left out some words here:
"in 5 sec the on the lorry is 15,000 Newtons. "

Is 5 seconds the time requred to accelerate from 10 to 25 m/s? If so, there are two ways to calculate acceleration, and they do not agree.

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