When the balanced force is applied on the ball It will roll away from the force.
<u>Explanation:</u>
- A ball lies on the floor in rest. If the balanced force is applied to
the ball, the force will push away.
- The forces would include gravity and the forces of air particles entering the ball from almost all directions.
- And the ground is exercising the force and shifting away from the impact.
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Answer:
Accuracy is how close a measured value is to an accepted value. <u>Precision is how close measurements are to one another.</u> To make measurements, you have to evaluate both the accuracy and the precision to get a correct value.
Answer:

Explanation:
From the question we are told that
Area of plate
Angle of inclination 
Velocity 
Thickness of oil 
Weight of plate 
Generally the equation for shear force is mathematically given by







Therefore viscosity is given by

It is given that the height of the tower is

The uncertainty the measurement of this height is

Drop time is measured as:

The uncertainty in measurement of time is:

Using the equation of motion:
where,
is the distance covered,
is the initial velocity,
is the acceleration and
is the time.
(because canon ball is in free fall). we need to calculate the value of a=g.


The uncertainty in this value is given by:

Substitute the values:
