A bowling ball rolls off the edge of a flat roof at a velocity of 16 m/s. What is the actual speed of the ball one second later?
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Answer:
The horizontal velocity is constant at 16 m/s.
After 1 sec since v = a t then 9.8 m/s^2 * 1 sec = 9.8 m/s for the vertical velocity
V = (Vx^2 + Vy^2)^1/2 = (16^2 + 9.8^2)^1/2 = 18.8 m/s
Related Questions
L 10. A car with a mass of 2,000 kilograms is moving around a circular curve at a uniform velocity of 25 meters per second. The curve has a radius of 80 meters. What is the centripetal force on the car?
A stuntman jumps from the roof of a building to the safety net below. How far has the stuntman fallen after 1.6 seconds?
Answer the following question about the attached diagram:1) Will the image form at A or B? 2) Will the image be erect or inverted? 3) Will the image be enlarged, diminished, or the same size? 4) What kind of mirror is this?
Use the drop-down menus to complete the statement about Earth’s magnetism.Earth’s magnetic field is generated in the , which is composed of that is constantly .Answer: core, iron, churning
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It's almost always used to describe things that are dropped, thrown, or shot,
like the trajectory of baseballs, golf balls, and canon balls, or other things moving
under the influence of gravity, like comets, asteroids, and planets. But it doesn't
have to be the path of something sailing overhead from one place to another.
You'll also hear about a person's 'trajectory through life'.
a
Universal Law of Gravitation
b
Newton's Second Law
c
Newton's First Law
d
Newton's Third Law
Answers
Answer:
C. Newton's First Law of Motion
Explanation:
As the car comes to an abrupt stop, the body is still moving forward, and is moved back by the seatbelt, an outside force. If not for the seatbelt, the body would continue forward until acted on by the car itself, or thrown out of the car.
Answer:
1st law
Explanation:
He used an experiment with gold foil to prove that an atom had a positive nucleus in the middle and was surrounded by negative electrons.
B.
He used thought problems to determine that matter could be divided into smaller pieces until it got to the atomic level.
C.
He used an experiment with Cathode Ray tubes to prove electrons existed when they changed the color of a gas.
D.
He used various experiments to prove that atoms of the same element have the same mass.
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Hope this helps!
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This question involves the concept of magnification.
The distance to the magnified image will be "24 cm".
Image Distance
The magnification of the magnifying glass is given by the following formula:
where,
- q = image distance = ?
- M = Magnification = 4
- p = object distance = 6 cm
Therefore,
q = (4)(6 cm)
q = 24 cm
Learn more about magnification here:
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Explanation:
Since, the given balloon contains equal volume of dry air at the same temperature and pressure therefore, moles of air filled is equal to the moles of helium gas.
Moles of air is 228363.69 moles and molar mass of air is 28.8 g/mol.
As we know that,
No. of moles of air =
228363.69 mol =
mass = 6576874.341 g
Therefore, mass left is as follows.
6576874.341 g - 913454.77 g (as 913454.77 g = mass of He)
= 5664419.57 g
Thus, we can conclude that mass left is 5664419.57 g.
Answers
Answer:
Explanation:
Initial velocity , u = 27 m/s
displacement before stop, s = 41.5 m .
final velocity, v = 0
acceleration a = ?
v² = u² + 2 a s
0 = 27² + 2 x a x 41.5
a = - 27² / 2 x 41.5
= - 8.78 m /s