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hard kinematic problem, need...help...pls:)
A policeman (on a motorcycle, with the engine going) is hiding behind a bush on the side of the road when a speeding truck passes with a speed of 96.5 km/h. As the truck passess he sets off with an acceleration of 1.83 m/s, which he maintains until he overtakes it. Calculate:
a) the time he took to overtake the truck
b) the distance he traveled in doing so
c) the velocity, in km/h, of the motor cycle when it catches the truck.
Well first i converted 96.5 hm/h into m/s which is 26.8 m/s and i know that his acceleration doesn't change, I am just wondering is the policeman's final velocity the speed that the truck is traveling at which is 26.8 m/s? And is his initial velocity 0? and his acceleration is 1.83 so i thort that i cud use v=u+at to work out a)
i think I am on the wrong track though actually I pretty sure I am. Can someone pls help me and also can sum1 pls tell me sum things that i shud look out for when trying to solve these really hard straight line motion questions. Like i get the simple ones but it is just ones similar to these that i find difficult. I appreciate all the help! Thankyou!:)
Homework Statement
A policeman (on a motorcycle, with the engine going) is hiding behind a bush on the side of the road when a speeding truck passes with a speed of 96.5 km/h. As the truck passess he sets off with an acceleration of 1.83 m/s, which he maintains until he overtakes it. Calculate:
a) the time he took to overtake the truck
b) the distance he traveled in doing so
c) the velocity, in km/h, of the motor cycle when it catches the truck.
Homework Equations
The Attempt at a Solution
Well first i converted 96.5 hm/h into m/s which is 26.8 m/s and i know that his acceleration doesn't change, I am just wondering is the policeman's final velocity the speed that the truck is traveling at which is 26.8 m/s? And is his initial velocity 0? and his acceleration is 1.83 so i thort that i cud use v=u+at to work out a)
i think I am on the wrong track though actually I pretty sure I am. Can someone pls help me and also can sum1 pls tell me sum things that i shud look out for when trying to solve these really hard straight line motion questions. Like i get the simple ones but it is just ones similar to these that i find difficult. I appreciate all the help! Thankyou!:)
