Let the position vector (with its tail at the origin) of a moving particle be r = r(t) = t2i − 2tj (t2 2t)k, where t represents time.

choosing tennis and golf balls is your inde choice.

their mass and volume are dep

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

0.19 m/s and 0.45 m/s

the tires are rotating at 0.434 rpmlinear speed=45 m/sdiameter=0.550 mradius=0.275 mnow v= rωω= v/rω=45/0.275ω=163.6 rad/sω=163.6 rad/s (1rev/2π rad) (60s/1m)ω=1563 rpm