A small mailbag is released from a helicopter that is descending steadily at 1.50 m/s.(a) After 2.00 s, what is the speed of the mailbag?-21.1The response you submitted has the wrong sign. m/s(b) How far is it below the helicopter?19.6(c) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 1.50 m/s?19.6Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry outall intermediate results to at least four-digit accuracy to minimize roundoff error. m/s18.1Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry outall intermediate results to at least four-digit accuracy to minimize roundoff error. m

(a) Given, velocity of the helicopter, u = 1.5 m/s Which is equal to initial velocity of the…

Answered: A small mailbag is released from a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 53P: A model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with a...

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A rock is thrown vertically upward with a speed of 14.0 m/sfrom the roof of a building that is 70.0 m above the ground. Assume free fall. 1) In how many seconds after being thrown does the rock strike the ground? Express your answer in seconds. 2) What is the speed of the rock just before it strikes the ground? Express your answer in meters per second.
A rock is tossed straight up with a speed of 25 m/s. When it returns, it falls into a hole 11 m deep. 1) What is the rock's velocity as it hits the bottom of the hole? Express your answer in meters per second. Enter positive value if the velocity is upward and negative value if the velocity is downward. 2) How long is the rock in the air, from the instant it is released until it hits the bottom of the hole? Express your answer in seconds.
A ball is tossed straight up from the ground. If it reaches the height of your bedroom window (2.0 m) and then falls straight back down to the ground, (g= 9.8 m/s?; Ignore air resistance and use at least 2 significant figures.) 1. What was its initial velocity? 2. How long is the ball in the air?
1. What maximum height, in meters, will be reached by a stone thrown vertically straight upward if it has initial speed of 18.65? 2. A brick was dropped from rest from a height of 16.8 m. How long does it take the brick to reach the ground (in seconds) ? note: Use acceleration due to gravity, g = 9.81 m/s2. 3. A car, starting from rest, accelerates in a straight-line path at a constant rate of 3.07 m/s2. How far will the car travel in 38.5 seconds? 4. A projectile is thrown from (##) = 8.1 meters above the ground. With initial velocity of 30 m/s and 20 degrees above the horizontal. Find the horizontal displacement, x. 5. A bird flew 641 km from Cebu to Manila with an average speed of 32.2 m/s. How long, in hours, did it take the bird to make this journey?
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Some troublemaking kids are dropping water balloons from the roof of your apartment building. You are in your ﬁfth-ﬂoor room and your window is 25 m above the sidewalk outside. You look outside and see that each balloon hits the pavement 1.5 s after passing your window. Express answers using 2 signiﬁcant ﬁgures. a) How fast are the balloons traveling when they pass your window? b) Assuming the balloons are being released from rest, from what height above your window are they being released? c) If you threw a balloon upwards from your window with an initial speed of 6.5 m/s, would you be able to get it to the roof?
A brick was dropped from rest from a height of 91.4 m. How long does it take the brick to reach the ground (in seconds) ? note: Use acceleration due to gravity, g = 9.81 m/s?. Select one: Оa. 182.8000 Ob. 4.3167 Ос. 42.3470 Od. 3.0524
Q1/A man standing at the top of a building throws a ball vertically upward with a velocity of 40 m /s The ball reaches the ground 4.25 s later. (a) What is the maximum height reached by the ball? (b) How high is the building? (c) With what velocity will it reach the ground?
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QUESTION 12 If a cannonball is launched from ground level with a speed of 40 m/s at an angle of 35° above the horizontal, for what time will the cannonball be in the air? Useg = 9.8 m/s2 (Assume that the ground is level.) О а. 4.7 s b.5.2 s О с. 5.7 s d. 6.7 s е. 6.2 s

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