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Alexeev081 [22]
2 years ago
6

Which is not an example of unbalanced force acting on an object

Physics
1 answer:
Viktor [21]2 years ago
4 0

Answer:

A motorcycle changing speed from 20km/h to 35km/h

Explanation:

it doesn't show unbalanced force acting on the object but instead, the motorcycle changing speed from 20km/h to 35km/h

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3 years ago
The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.320 with the floor. If
mart [117]

Answer:  29.50 m

Explanation: In order to calculate the higher accelation to stop a train  without moving the crates inside the wagon which is traveling at constat speed we have to use the second Newton law so that:

f=μ*N the friction force is equal to coefficient of static friction  multiply the normal force (m*g).

f=m.a=μ*N= m*a= μ*m*g= m*a

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a=μ*g=0.32*9.8m/s^2= 3.14 m/s^2

With this value we can determine the short distance to stop the train

as follows:

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