# Physics

rob colley set a record in “pole sitting” when he spent 42 days in a barrel at the top of a flagpole with a height of 43 meters, suppose you wanted to throw him up a sandwich. with what speed do you have to throw the sandwich up so that it would just reach the barrel?

1. 👍 0
2. 👎 0
3. 👁 336
1. v^2 = 2as = 19.6 * 43 = 842.8
v = 29.03 m/s
check:
h = 29.03t - 4.9t^2
the vertex is at (2.96,43)

1. 👍 1
2. 👎 0

## Similar Questions

1. ### phyics

A dart leaves the barrel of a blowgun at a speed v. The length of the blowgun barrel is L. Assume that the acceleration of the dart in the barrel is uniform. Find a time that the dart moves inside the barrel. Express your answer

2. ### Math

A barrel contained 60 gallons of water. Water leaked out of the barrel at a rate of 5 gallons every 3 days. How many days did it take for all 60 gallons of water to leak out of the barrel?

3. ### Physics

The Olympic record for the marathon set in 2008 is 2 h, 6 m, 32 s. The marathon distance is 26 mi. What was the average speed of the record-setting runner in km/h?

4. ### Physics

A record for a marathon is 2.00h, 9.00min, 21.0 sec. If the average speed of a runner achieving this record is 5.436 m/s, what is the marathon distance? Answers: 15,878 km 7,761 km 42.2 km 26.2 km We're omnly two days into the new

1. ### math

In his algebra class, Rob has scores of 79, 85, 81, and 65 on his first four tests. To get a grade of C, the average of the first five tests must be greater than or equal to 70 and less than 80. Solve an inequality to find the

2. ### Math: Trig

to determine the height of a pole across a road, Justin takes two measurments. he stands at Point A directly across from the bass of the pole and determines that the angle of elevation to the top of the pole is 15.3 degrees. he

3. ### maths

a rope 10m long from the top of a vertical pole to a point on the ground makes an angle of 23 degrees with the pole. how high is the pole?

4. ### trig

Two people decide to estimate the height of a flagpole. One person positions himself due north of the pole and the other person stands due east of the pole. If the two people are the same distance from the pole and a = 30 feet

1. ### maths

pole A is twice as long as pole B. pole C is 260 cm shorter than pole A. pole C is 1040 cm long, what is the total length of the three poles

2. ### Programming

Design a program in pseudocode that calculates the amount of money a person would earn over a period of time if their salary is one penny the first day, and then doubles each day. The program should ask the user for the number of

3. ### Algebra

Scott set up a volleyball net in his backyard. one of the poles, which forms a right angle with the ground, is 6 feet high. To secure the pole, he attached a rope from the top of the pole to a stake 8 feet from the bottom of the

4. ### Trig

A telephone pole that is 14ft y’all has fallen against a house. If the top of the telephone pole touches the house 8ft. Above the ground, what is the angle that the telephone pole makes with the ground? Stuck on this question on