Problem 2: An object rotates on a fixed axis, and the angular velocity versus time is given by the straight-line graph shown. o (rad/s) 500 400 300 200 100 t (s) O 1 2 3 4 5 6 7 8 9 10

A disk spins at 4.0 revolutions/second. What is its period, in second? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

A car sits at rest at the starting line of a circular racetrack. It begins to accelerate at a constant rate (that 15, a constant angular acceleration) as it makes Its way halfway around the track. It then decelerates at the same constant rate during the second halt of the lap. It completes the entire lap in a time of 28.5 seconds. Also, the radius of the racetrack is 42.0 m. What is the car's top speed?A) 25.6 m/SB) 44.1 m/SC) 18.5 m/sD) 35.1 m/s

An object moves uniformly around a circular path of radius 22.0 cm, making one complete revolution every 2.20 s. ONLY ANSWER C PLEASE, I HAVE A & B (a) What is the translational speed of the object?0.628m/s(b) What is the frequency of motion in hertz?0.454Hz(c) What is the angular speed of the object?rad/s