Homework Help: physics

Posted by ricchie on Saturday, December 15, 2012 at 6:33pm.

a truck with a mass of 2100 kg travels at a constant speed of 75 km/h.
(a) What is the magnitude of the truck’s linear momentum?
kg·m/s
(b) What average force would be required to stop the truck in 7.5 s?
does this have to do with f=ma or not? help

physics - Elena, Saturday, December 15, 2012 at 6:48pm
(a) p=mv
km/h -> m/s !!!
(b)
F=ma=mv/t

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