Ahorse trots away from its trainer in a straight line .moving 38 m away in 9.0 s . it then turns abruptly and gallops halfway back in 1.8 s . calculate its average speed and average velocity?

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2