Athing Mu ran the 800 meter race in a time of 1:55.04 (that is 1 minute 55.04 seconds).Calculate her average speed in m/s for this race using the equation average speed is equal to total distance divided by time to travel that distance.

Need in all of themmm only answer if you know plsssss

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.