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anonymous
 4 years ago
a car of mass 1000kg travelling along a straight horizontal road accelerates uniformly from 15m/s to 25m/s in a distance of 320m. if the resistance to motion is 145N,find the driving force of the engine.
anonymous
 4 years ago
a car of mass 1000kg travelling along a straight horizontal road accelerates uniformly from 15m/s to 25m/s in a distance of 320m. if the resistance to motion is 145N,find the driving force of the engine.

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ash2326
 4 years ago
Best ResponseYou've already chosen the best response.0Lianaro it'd help you more, if you post this in physics. You'd get better response there. Thanks :)

ash2326
 4 years ago
Best ResponseYou've already chosen the best response.0Nevertheless, I'm solving it for you here :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0thnx :)... this question actually in my tutorial

ash2326
 4 years ago
Best ResponseYou've already chosen the best response.0Mass=1000 Kg it's given car accelerates from 105 to 25 in a distance of 320 m we know \[v^2u^2=2as\] v=final velocity= 25 m/s u=initial velocity= 15m/s s=320 so \[625225=2*320*a\] a=400/640 m/s^2 or a=5/8m/s^2 Force= m*a now Force due to this =100*5/8=62.5 Newtons it's given the resistance is 145 N so the driving force is= 145+62.5=207.5 Newtons
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