An unwary football player collides with a padded goalpost while running at a velocity of 6.50 m/s and comes to a full stop after compressing the padding and his body 0.250 m. (a) How long does the collision last? (b) What is his deceleration in m/s2?

In Michael Johnson's world-record 400 mm sprint, he ran the first 100 mm in 11.20 ss; then he reached the 200 mm mark after a total time of 21.32 ss had elapsed, reached the 300 mm mark after 31.76 ss, and finished in 43.18 ss. During what 100 mm segment was his speed the highest?

A 50.0-g Super Ball traveling at 25.5 m/s bounces off a brick wall and rebounds at 20.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.80 ms, what is the magnitude of the average acceleration of the ball during this time interval?

Two locomotives 70 kilometers apart are travelling on the same track towards each other, Engine A moves at 22 kilometers per hour east and engine B moves at 13 kilometersper hour west. At the instant both trains begin moving, an annoying mutant fly beginsflying from engine A towards engine B at 33 kilometers per hour . The instant it touchesB, it turns around and flies back. It goes on this way until the two locomotives collideand the mutant fly is finally squashed. So, before its untimely demise, a) what is the total distance the fly flew? b) the time it took till  it was eliminated and c) the average velocity of the fly? how can i find this please

While traveling at 32.0 m/s the Rocketmanaccelerates at 8.00 m/s2over a distance of 250m. What is his final velocity?

A 50.0-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 16.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.60 ms, what is the magnitude of the average acceleration of the ball during this time interval?

Calvin throws a ball straight down from the balcony of an apartment building at a velocity of 5.04 m/s.  What is the absolute value of the velocity (in m/s) after 1.108 s have passed

In 2004 a massive 10-30m high tsunami was created in the eastern Indian Ocean by anearthquake in Sumatra resulting in the loss of hundreds of thousands of lives. The coast of Africa lies7000km to the west of Sumatra. Knowing that tsunami’s propagate at a speed v = √gH, how longdid it take for the tsunami to strike Africa?