Amtrak's 20th-Century Limited is en Route - Science & Maths Assignment Help

Assignment Task

1- Starting from home, you bicycle 26 kmkm north in 2.7 hh and then turn around and pedal straight home in 1.7 hh . What are your (a) displacement at the end of the first 2.7 hh , (b) average velocity over the first 2.7 hh , (c) average velocity for the homeward leg of the trip, (d) displacement for the entire trip, and (e) average velocity for the entire trip?

2- A space shuttles main engines cut off 7.9 minmin after launch, at which time the shuttle's speed is 7.9 km/skm/s .
What is the shuttles average acceleration during this interval?

3- A model rocket leaves the ground, heading straight up at 53 m/sm/s . Whats its maximum altitude?, Find its velocity at 1 ss?, Find its altitude at 1 sec?, Find its velocity at 4 sec? Find its altitude at 4 ss? Find its velocity at 7 sec?, Find its altitude at 7 ss?

4- A Frisbee is lodged in a tree branch 6.1 mm above the ground. A rock thrown from below must be going at least 3.0 m/sm/s to dislodge the Frisbee. How fast must such a rock be thrown upward if it leaves the throwers hand 1.3 mm above the ground?

5- A rock is thrown directly upward from the edge of the roof of a building that is 56.6 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. Neglect any effects of air resistance. With what speed was the rock thrown?

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