Aping-pong ball has a mass of 2.3 g and a terminal speed of 9.1 m/s. the drag force is of the form bv2 what is the value of b?

Explanation:

The terminal speed is reached by an object in free fall when the force of gravity becomes equal to the air resistance:

This can be rewritten as

where

m is the mass of the object

g is the gravitational acceleration

b is the coefficient of the air resistance

v is the speed of the object

In this problem, we have m = 2.3 g = 0.0023 kg, g=9.8 m/s^2 and v=9.1 m/s. Substituting and re-arranging the equation we find

the answer is b, have negligible mass

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles