Question

In: Physics

Group Work 3 – GI Joe (option 2) G. I. Joe paratrooper Ripcord (80 kg) is...

Group Work 3 – GI Joe (option 2)

G. I. Joe paratrooper Ripcord (80 kg) is invading Cobra HQ. He’s brought in by a stealth bomber, where he jumps from an altitude of 10,000 ft (approx 3000 meters).

What is his initial acceleration?

If the chute failed, what would his average acceleration be over the trip? Assuming the average acceleration, how fast would he hit the ground?

Derive an equation for the ratio of terminal velocities between diving head first vs. spread eagle (lying flat).

At 1,000 ft, he pulls the parachute cord (a 1m x 5m rectangular chute). What is his initial acceleration due to drag?

How long does it take to reach the ground at Cobra HQ if the parachute opens at 1,000 ft?

Expert Solution

Initial acceleration would be, g=32ft/s².

If chute fails, let us consider that there is no drag force acting in his fall.

in that case velocity at which he hits ground would be, v= = = 800ft/s

Now considering coefficient of drag C_dh & C_de for head dive & spread eagle type of fall. & projected .areas are A_h & A_e respectively

we know terminal velocity =

therefore taking ratios of terminal velocities it will be V_h/V_e =

At altitude of 1000ft, velocity will be = 759 ft/s. = 231.3m/s

we know, drag due to parachute as

=> once substituted we get drag force as 0.5*1.225*231.3² * (1*5)*1.28 = 62915.6N

thus acceleration due to drag will be F/m = 62915.6/80 = 786.44m/s²

Therefore, net deceleration is 786.44-9.81m/s ² = 776.64m/s²

genius_generous answered 1 year ago

Let G be a group of order 42 = 2 * 3 * 7 (a) Let...

Let G be a group of order 42 = 2 * 3 * 7 (a) Let P7 be a Sylow 7-subgroup of G and let P3 be a Sylow 3-subgroup of G . What are the orders of P3 and P7? (b) Prove that P7 is the unique Sylow 7-subgroup of G and that P7 is normal. (c) Prove that P3P7 is a subgroup of G (d) Prove that P3P7 is a normal subgroup of G . (e) Let P2...

What is a systems theory work group and how do I identify the work group/system?

Question 3. Suppose a public good G can be created from the contribution( gi) of N...

Question 3. Suppose a public good G can be created from the contribution( gi) of N different people. That is:G=g1+g2+g3+⋯+gN An individual’s consumer surplus is√G−g. How much will everyone contribute, if they each try to maximize only their own consumer surplus? How much should everyone contribute to maximize total consumer surplus?

Assignment Option #2: Government Transactions Complete all work on the Option 2 Spreadsheet (linked at the...

Assignment Option #2: Government Transactions Complete all work on the Option 2 Spreadsheet (linked at the bottom of the page) to this assignment; it will be your only deliverable. Using the data in the attached spreadsheet, perform the accounting required for each of the following government fund transactions: Perform the required journal entries Requirements: Clearly identify the requirements being addressed. Show all calculations within the cells of an Excel spreadsheet. This means that you must use formulas and links so...

Let G be a group and let N ≤ G be a normal subgroup. (i) Define...

Let G be a group and let N ≤ G be a normal subgroup. (i) Define the factor group G/N and show that G/N is a group. (ii) Let G = S4, N = K4 = h(1, 2)(3, 4),(1, 3)(2, 4)i ≤ S4. Show that N is a normal subgroup of G and write out the set of cosets G/N.

Please show work! a) A 80 kg baseball player jumps with a horizontal velocity of 8.1...

Please show work! a) A 80 kg baseball player jumps with a horizontal velocity of 8.1 m/s and collides with an 89 kg teammate who jumps with a horizontal velocity of 2.7 m/s in the opposite direction. If the players became tangled in mid-air, what would their combined horizontal velocity be after the impact? A) 2.41 m/s B) 2.99 m/s C) 5.26 m/s D) 5.54 m/s b) After the collision, which horizontal direction do the tangled players move? A) the...

3)A person with mass m1 = 80 kg stands at the left end of a uniform...

3)A person with mass m1 = 80 kg stands at the left end of a uniform beam with mass m2 = 100 kg and a length L = 4.0 m. Another person with mass m3 = 110 kg stands on the far right end of the beam and holds a medicine ball with mass m4 = 10 kg (assume that the medicine ball is at the far right end of the beam as well). Let the origin of our coordinate...

I had to work in a group to form a presentation. the course was an online...

I had to work in a group to form a presentation. the course was an online course so the member had one way of communication.write a reflection on working on an online, group presentation.Advantages and disadvantages

Let G be a group of order 40. Can G have an element of order 3?

Can I get the answers to these with work shown? 2, 3, 4, and 5 only...

Can I get the answers to these with work shown? 2, 3, 4, and 5 only please. 1. The following two linear functions represent a market (thus one is a supply function, the other a demand function). Circle the answer closest to being correct. Approximately what will the quantity demanded be if the government controls the market price to be $1.50 (You must first find the market equilibrium price and quantity in order to see how the $1.50 relates to...