A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are correct? i. The acceleration of the ball is zero. ii. The net force on the ball is zero. iii. The velocity of the ball increases.

JThomson

7 years ago

The correct answer is B; Since the ball reaches terminal velocity, the acceleration as well as the force on it is zero.

anuoluwasubomi

5 years ago

if acceleration is zero then net force is also zero. F = ma

FANCY1234

4 years ago

my school pls correct this
the answer is B

chikezieegbuziem

4 years ago

The accurate answer is B because The downward force due to gravity on the ball equal to m g, m being the mass of the ball. The force due to viscous drag on the ball. This force of drags increases quadratically with the velocity of the ball. Since the net force is zero, the ball now moves with a constant velocity, called the terminal velocity.

chikezieegbuziem

4 years ago

The correct answer is B. The downward force due to gravity on the ball is equal to m g, m being the mass of the ball. The force due to viscous drag on the ball. This force of drags increases quadratically with the velocity of the body. Since the net force is zero, the body now moves with a constant velocity, called the terminal velocity.

chukwuemekanwaokolo

4 years ago

i and ii only. Explanation; since the ball has reached terminal velocity which is also known as constant velocity a fallen body attains, the net force is zero ie Upthrust + Air resistance = Weight