As your bus rounds a flat curve at constant speed, a package with mass 0.900 kg , suspended from the luggage compartment of the bus by a string 50.0 cm long, is found to hang at rest relative to the bus, with the string making an angle of 30.0 â with the vertical. In this position, the package is 55.0 m from the center of curvature of the curve. Required:
a. What is the radial acceleration of the bus?
b. What is the radius of the curve?

a.

b.55 m

Explanation:

We are given that

Mass ,m=0.9 kg

Length of string,l=50 cm=

1 m=100 cm

R=55 m

a.Centripetal acceleration

Hence, the radial acceleration of the bus=

b. Radius of curve,R=55 m

current flows in a wire

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.