Homework Help: .physics

Posted by precious on Saturday, January 5, 2013 at 4:51pm.

correction of question.
A lorry of mass 1000kg moving initially at 10m/s increases to 25m/s. In 5sec the impluse on the lorry is 15,000Ns; calculate
1. Acceleration
2.The distance covered.

.physics - bobpursley, Saturday, January 5, 2013 at 7:08pm
Impulse=changeofmomentum
impulse=mass(vf-vi)
force*time=15000
calculate force

then
force=mass*acceleration solve for acceleration

vf^2=vi^2+2ad solve for d

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