A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 11.5 m/s, skates by with the puck. After 3.4 s, the first player makes up his mind to chase his opponent. If he accelerates uniformly at 4.3 m/s², how long does it take him to catch his opponent? Round your answer to 1 decimal place.

Cities A and B are connected by a straight road of total length 200 miles.Two cars depart cities A and B at the same time, moving towards each other. The A-car travels at 60 miles per hour, and the B-car at 40 mph. At the same time, a fly starts off from the front bumper of the A-car flying at 100 mph. It flies towards city B until it touches the bumper of the B-car, and then flies back, touches the A-car, flies back, etc, until the cars collide and the fly is squashed. The standard trick question is - what is the total distance traveled by the fly? At first sight one would think that the problem should be solved by the series summation, but that’s not necessary - the cars meet after 2 hours, and during that time the fly traveling at 100 mph covers exactly 200 miles. Now that you know the answer, solve this problem using the series summation [1].

You and a friend ride your bikes to a restaurant across town. Both of you start at the same instant from your house, you riding 10 m/s and your friend riding 12 m/s. During the trip your friend has a flat tire and that takes him 8 minutes to fix. He then continues the trip at the same speed of 12 m/s. If the distance to the restaurant is 10 km, who gets there first?

You throw an object directly up into the air, and then catch it when it comes back down. It hits your hand at a speed of 5 m/s on the way down. What was the initial velocity of the ball?

Here we go again (yes, this set of questions is starting to feel like Groundhog Day). You AGAIN wake up in a strange room, and this time you drop a ball from a height of 2.41 m, and observe that it hits the floor 0.421 s after you drop it. In this case you suspect you are in deep space, far from any planet or star, and that your rocket is accelerating due to the push of its own engines under the floor. In this case, what must the acceleration of your rocket be? 1 43.5 m/s^2 2 43.5 m/s^2 3 13.6 m/s^2 4 20.4 m/s^2

Here we go again (yes, this set of questions is starting to feel like Groundhog Day). You AGAIN wake up in a strange room, and this time you drop a ball from a height of 2.48 m, and observe that it hits the floor 0.284 s after you drop it. In this case you suspect you are in deep space, far from any planet or star, and that your rocket is accelerating due to the push of its own engines under the floor. In this case, what must the acceleration of your rocket be?     30.7 m/s^2     30.7 m/s^2     123.0 m/s^2     61.5 m/s^2

If you drop an object from a height of 0.9 m, it will hit the ground in 0.44 s. If you throw a baseball horizontally with an initial speed of 16 m/s from the same height, how long will it take the ball to hit the ground?

QUESTION 2 You start out by driving 173 miles south in 2 hours and 33 minutes, and then you stop and park for a while. Finally you drive another 56 miles south in 3 hours and 39 minutes. The average velocity for your entire trip was 29.55 miles per hour to the south. How much time did you spend parked?   A 7 hours 44 minutes   B 1 hours 32 minutes   C 3 hours 5 minutes   D 0 hours 46 minutes