Significant Figures And Decimal Places

The area of a circular plate is given by the formula:

Where: - is the radius of the circular plate, which is given as 1.05 m. Substituting the value of m into the formula: Using : The radius is given to 3 significant figures, so the area should also be reported to 3 significant figures. Thus, the correct area, rounded to the correct significant figures, is 3.475 m².

Correct Answer:

Correct Answer: (B) 3.475

The maximum height reached by the ball can be calculated using the kinematic equation: where m/s (final velocity at the top), m/s (initial velocity), and m/s (acceleration due to gravity).
Solving for ,