The wheel on an upside-down bicycle moves through 18.0 rad in 5.39 s. What is the wheel’s angular acceleration if its initial angular speed is 2.5 rad/s? Answer in units of rad/s 2 .

Explanation:

Formula to calculate angular acceleration is as follows.

or,      

Putting the given values into the above formula as follows.

                =    

                = 0.326

Thus, we can conclude that the wheel’s angular acceleration if its initial angular speed is 2.5 rad/s is 0.326 .

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s