Explanation:
it attributes to Being pride of herself
Formula for acceleration: A=Force/Mass
A=F/M
A=80N/4.5kg
A=17.7 m/s^2
Unit for A is meters per second (m/s^2)
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Answer:
Explanation:
The given equation is 
where 
denotes initial time in the stopwatch and 
denotes the distance covered by car.
As the judge starts her watch at the instant the car passes the 2.0 meter mark 
and the judge reads 3.9 seconds on her stopwatch when the car passes the 8.0 meter mark.
Put 
in equation
For a given condition above, use the concept of equal moments. Moment is the product of the force and its distance from a reference point. Let x be the distance of the 25 kg body from the fulcrum and 3 - x be the distance of the right mass, 15 kg, from the fulcrum. Equating the moments give,
(25 kg)(9.8 m/s²)(x) = (15 kg)(9.8 m/s²)(3 - x)
The value of x is 1.125 m. Therefore, the fulcrum should be 1.875 m from the right mass.
