A car starting from rest accelerates up to 50km/sec in 6 seconds. If the car’s wheels have a diameter of 0.8 meters, what are the wheels’ average angular acceleration (rads/sec/sec)?
2007-03-28 03:44:00 · 2 answers · asked by GSU 1 in Science & Mathematics ➔ Physics
Wow, where can I buy a car that travels at 50 km per second??? I'd get home from work in less than one sec!!
I assume you mean 50 m per sec!
Wheels spin at 50/0.8 = 62.5 times a second
62.5 * 2 * pi = 392.7 radians per second
Assuming constant acceleration,
392.7 / 6 = 65 rads / sec²
2007-03-28 03:51:59 · answer #1 · answered by Robin the Electrocuted 5 · 0⤊ 0⤋
unique angular velocity ? = 17 rad/s Angular displacement in the process combating time ? = 5.9 rad combating time is t = 2?/ ? = 2*(5.9 rad)/(17 rad/s) = 0.69412 s Angular acceleration (deceleration) is ? = ?/t = (17 rad/s)/( 0.69412 s) = 24.40 9 rad/s² -
2016-12-15 10:39:59 · answer #2 · answered by ? 4 · 0⤊ 0⤋