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s2008m [1.1K]
3 years ago
5

An archer wants to hit a target that is dropped from a tower. At the sound of a horn, the archer is to shoot an arrow; at the sa

me instant, the target will be dropped. Ignoring air resistance, where should the archer aim in order to hit the target?
A. slightly above the initial position of the object


B. at the spot where the archer hopes to hit the target


C. directly at the initial position of the object


D. above the spot where the archer hopes to hit the target
Physics
2 answers:
MrRissso [65]3 years ago
7 0

Answer:

C. directly at the initial position of the object

Explanation:

As we know that archer wants to hit the target at a given position but at the same time when archer shot the arrow the the target is also dropped under gravity

So here the arrow will move simultaneously in two directions

a) horizontal motion with uniform speed

b) motion under gravity

so here the arrow will move under gravity and drops the same distance in same time as that the target will drop due to gravity

so here the motion of arrow will hit the target if the archer initial shot at the initial position of the target

bija089 [108]3 years ago
6 0

It has to be D because the arrow will drop as it moves, if it were a gun, you'd lead the target so fire below it, but due to it being an arrow, you aim high not low. Also, they didnt specify how fast anything is, so you'd probably miss if you actually did it.


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Based on the information in the graph which region is expected to have the least population growth from 2000 to 2020
MakcuM [25]

Answer:

A

Explanation:

The region with the least population growth will have the shallowest line.  That would be Europe.  Between 2000 and 2020, the line is basically flat, while the others are rising.

Answer is A.

6 0
3 years ago
Using a horizontal force of 200N,we intend to move a wooden cabinet across a floor at constant velocity.What is the friction for
IgorLugansk [536]

Answer:

-200 N

Explanation:

The cabinet moves at constant velocity, so that means there's no acceleration.

Applying Newton's second law to the cabinet:

∑F = ma

F + 200 = 0

F = -200

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8 0
3 years ago
Define a combination circuit.
Neporo4naja [7]

Answer:

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7 0
3 years ago
6. A billiard ball traveling at 4.0 m/s has an elastic head-on collision with a billiard ball of equal mass
Yakvenalex [24]
Answer is C‼️.......................
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3 years ago
If a 4.5 kg object is dropped from a height of 6.0 m, what will be its velocity when it is halfway toward the ground? (Use g = 9
dangina [55]
When an object falls or is dropped from rest it's initial velocity is zero.
Using the equations for a motion in straight line. I can find the time it takes to reach 3.0 m down (half way).
x = vt - 4.9t²
-3 = 0 - 4.9t²
-3/-4.9 = t²
0.6122 = t²
0.7825 sec = t

v = v - gt
v = 0 - 9.8(0.7825)
v = -7.67 m/s
the negative denotes downward direction.

You  could also solve the problem using potential and kinetic energy.

Since it starts with maximum PE and gets converted to KE when it hits the ground. mgh = mv²/2
mass cancels, use 3 meters for the halfway distance
-9.8(-3) = v²/2
29.4 * 2 = v²
√(58.8) = 7.67 m/s downwards
7 0
3 years ago
Read 2 more answers
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