A tennis player swings at a ball at a constant speed, taking 0.50 s to rotate her arms and racquet from horizontal to vertical. What acceleration is felt by a small bug at the tip of her racquet if it is 1.3 m from her shoulder

the acceleration of the small bug is 12.83 m/s²

Explanation:

Given;

time of motion, t = 0.5 s

radius of the circular path created by his arm, r  = 1.3 m

if he rotates his arm from horizontal to vertical, the angular displacement = 90⁰

The centripetal acceleration of the ball is calculated as;

Therefore, the acceleration of the small bug is 12.83 m/s²

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2