1) A rocket moves upward, starting from rest with an acceleration of 29.4 m/s2 for 8.00 s. It runs out of fuel at the end of the 8.00 s but does not stop. How high does it rise above the ground?
2) Two students are on a balcony 16.6 m above the street. One student throws a ball vertically downward at 16.7 m/s. At the same instant, the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down. (Assume the positive direction is upward.)
(a) What is the difference in the time the balls spend in the air?
(b) What is the velocity of each ball as it strikes the ground?
ball thrown downward
ball thrown upward
(c) How far apart are the balls 0.800 s after they are thrown?
3) A small fish is dropped by a pelican that is rising steadily at 0.55 m/s. (Assume the positive direction is upward.)
(a) After 3.0 s, what is the velocity of the fish?
(b) How far below the pelican is the fish after 3.0 s?
4) A parachutist descending at a speed of 25.0 m/s loses a shoe at an altitude of 40.0 m. (Assume the positive direction is upward.)
(a) When does the shoe reach the ground?
(b) What is the velocity of the shoe just before it hits the ground?
5) A mountain climber stands at the top of a 50.0 m cliff hanging over a calm pool of water. The climber throws two stones vertically 1.1 s apart and observes that they cause a single splash when they hit the water. The first stone has an initial velocity of 2 m/s. (Assume the positive direction is upward.)
(a) How long after release of the first stone will the two stones hit the water?
(b) What is the initial velocity of the second stone when it is thrown?
(c) What will the velocity of each stone be at the instant both stones hit the water?
6) A model rocket is launched straight upward with an initial speed of 60.0 m/s. It accelerates with a constant upward acceleration of 6.0 m/s2 until its engines stop at an altitude of 150 m.
(a) What is the maximum height reached by the rocket?
(b) How long into the flight does the rocket reach maximum height?
(c) How long is the rocket in the air?
Try it now!
How it works?
Follow these simple steps to get your paper done
Place your order
Fill in the order form and provide all details of your assignment.
Proceed with the payment
Choose the payment system that suits you most.
Receive the final file
Once your paper is ready, we will email it to you.
Australia Assessments has gained an international reputation of being the leading website in custom assignment writing services. Once you give us the instructions of your paper through the order form, we will complete the rest.
As we work towards providing the best custom assignment services, our company provides assignment services for any type of academic essay. We will help you develop professionally written essays that are rich in content and free from plagiarism.
Admission and Business Papers
Our skilled team of professional writers will ensure that we help you craft a remarkable admission essay for your desired Master's program in your institution of choice. We won't stop there. Once you enter the job market, we will be available to secure you a position at your desired worksite by creating an outstanding portfolio or resume.
Editing and Proofreading
Our editorial team is always available for all editing and proofreading services. They check completed papers by our writers and also provide professional opinions to papers completed by our clients.
We harbor professional academic writers with different qualifications in diverse academic fields. As such, we are capable of handling both simple and technical papers. Ensure that you provide us with correct and complete instructions in the order form.