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Summersnow8
 one year ago
How many Newtons of force are required to stop a truck 2250 kg truck going 32.0 km/h in 4.00s?
@rajat97
Summersnow8
 one year ago
How many Newtons of force are required to stop a truck 2250 kg truck going 32.0 km/h in 4.00s? @rajat97

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shamim
 one year ago
Best ResponseYou've already chosen the best response.0I m not solving ur problem. Because u did not give me medal in ur previous problem

rajat97
 one year ago
Best ResponseYou've already chosen the best response.1here, we just need to find the acceleration of the truck(i mean deceleration) and then multiply it with the mass of the truck first we convert everything into SI units the initial speed=u=32km/hr=8.89 m/s the final speed=v=0m/s time=t=4s we can use the kinematical equation v=u+at where a is the acceleration and all the other variables are defined above so from here, you get the acceleration (or the deceleration as we want to stop the truck) of the truck and then we just need to multiply the value of a i.e. acceleration with the mass of the truck i.e. 2250Kg

rajat97
 one year ago
Best ResponseYou've already chosen the best response.1i may not be very clear so just feel free to ask anything

Summersnow8
 one year ago
Best ResponseYou've already chosen the best response.2how do you find Newtons from all this information?

rajat97
 one year ago
Best ResponseYou've already chosen the best response.1by Newtons in the question, they mean 'Force' and we know, force is F=mass x ?

Summersnow8
 one year ago
Best ResponseYou've already chosen the best response.2\[a = \frac{ Vu }{ t } = \frac{ 08,888 }{ 4.00 } = 2.22\] \[F = m * a = (2250 * 2.222) = 5000\]

rajat97
 one year ago
Best ResponseYou've already chosen the best response.1Awesome! you are absolutely right!

Summersnow8
 one year ago
Best ResponseYou've already chosen the best response.2do i keep the  sign?

rajat97
 one year ago
Best ResponseYou've already chosen the best response.1the ve sign just means that the force is applied in opposite direction to that of the motion of the object which is the truck here

Summersnow8
 one year ago
Best ResponseYou've already chosen the best response.2so if i submit an answer, should I submit 5000 or 50000

rajat97
 one year ago
Best ResponseYou've already chosen the best response.1you should submit just 5000 as they have asked 'how many newtons' and not the direction of the force i.e. only magnitude

Summersnow8
 one year ago
Best ResponseYou've already chosen the best response.2okay thanks for your help
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