Figure 4 shows two concrete mixers. Complete the sentence to explain what the term centre of mass means. The centre of mass of a concrete mixer and its contents is

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

Road users moving into your lane, brake lights, and abrupt changes in road surface are a. rare at night b. indicators of potential hazards c. not worth worrying about before you reach them d. no problem for experienced drivers

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving