If gravity accelerates you at 9.80m/s2 when you fall, what velocity would you have after falling 1 second? How fast would you be falling after 5.0 seconds?

You go to the roof of the twelve story building and look over the edge to the reflecting pool 170 feet below. You drop your book over the edge at the same instant that azmira chucks his book straight down at 48 feet per second . By how many seconds does his book into the water?

OK, this is the last time for one of these crazy adventures. THIS time, though, there is a window in the floor, and you can see that you re in a rocket which has just taken off from the surface of an alien planet. By taking careful measurements out that window you determine that the rocket is accelerating upward at 7.11 m/s^2. When you drop a ball from a height of 1.08 m, it hits the floor 0.213 s later. What is the value of g for the alien world below you?     49.0 m/s^2     60.8 m/s^2     40.5 m/s^2     57.4 m/s^2

A jet plane has a takeoff speed of vto = 72 m/s and can move along the runway at an average acceleration of 1.7 m/s2. If the length of the runway is 1.4 km, will the plane be able to use this runway safely? O Yes O No Defend your answer.

You want to visit your friend in Seattle and decide to take the train. Unfortunately, you are late getting to the train station. You are running as fast as you can, but 30 meters ahead of you the train begins to pull out. You can run at a maximum speed of 8 m/s and the train is accelerating at 1 m/s². In 50 meters you will reach a barrier. Can you catch up to the departing train? Argue why you should or should not jump onto the moving train?

A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 46 ft/s. Its height in feet after t seconds is given by y = 46t – 21t2. A. Find the average velocity for the time period beginning when t=2 and lasting .01 s: .005 s: .002 s: .001 s: NOTE: For the above answers, you may have to enter 6 or 7 significant digits if you are using a calculator. Estimate the instanteneous velocity when t=2.

There is a 1500 mile race course. The max forward acceleration is 4 m/s2 and the max backward acceleration is 6 m/s2. I start at 600 m and must go to the 800 m mark (I must travel 200 m). What is an equation for the fastest time that I could get to 800 m? What is the position, time, and velocity of my vehicle?

You are diving board over a swimming pool. You are throwing upward a tennis ball at a speed 3 m/s. On its way back down the tennis ball narrowly misses the diving and hits the water below at 15 m/s. The board is about

Hi, I need help with this physcis problem. I've gone over it multiple times and can't firgure it out. Anyway you can help?   A car, initially at rest, accelerates at a constant rate of 2 m/s2 due east (choose east as the positive direction; round your answer to the nearest meter per second; include units)What is its velocity after 1 second? What is its velocity after 2 seconds? What is its velocity after 3 seconds? What is its velocity after 4 seconds? What is its velocity after 5 seconds? What is its velocity after 9 seconds?  If instead a car accelerates at a constant rate of 5 m/s2 due eastWhat is its velocity after 1 second? What is its velocity after 2 seconds? What is its velocity after 3 seconds? If instead a car accelerates at a constant rate of 5 m/s2 due westWhat is its velocity after 1 second?

You have been hired as a physics professor by some aliens and taken far far away to their ‘planet’. Being curious, you wanted to find out which ‘planet’ you were on. With an alien stopwatch you determined the time for a 2.0 kg alien object released from a height of 2.5 m to hit the ground to be 1.75 s.   1. What is the acceleration due to gravity on the alien ‘planet’?                                                            2. With what speed does the alien 2.0 kg object hit the ground?