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zhenek [66]
4 years ago
14

If you ignore air resistance after an initial force launches a projectile, name all forces acting on it as it moves through the

air. What does this force cause the object to do?
Physics
1 answer:
alekssr [168]4 years ago
8 0

Answer:

Neglecting air resistance, the only force acting on a projectile is gravity.

This force causes the object to accelerate.

Explanation:

As a projectile moves upward, there is a downward force and a downward acceleration due to force of gravity. That is, as the object is moving upward, force of gravity acting on the projectile is causing a steady slowing down of the projectile.

Hence, Gravity is the downward force upon a projectile that influences its vertical motion and causes the parabolic trajectory that is characteristic of projectiles.

From Newton's law of motion, it suggest that force is required to cause an acceleration and not motion. Therefore, force of gravity causes the object to accelerate downwards.

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Two students are watching a person riding a skateboard up and down a ramp. Each student shares what they think about the energy
avanturin [10]

Answer:

Explanation:

We know that , If the frictional force on a system is zero , then the total energy of a system will be conserved.

By using energy conservation

KE₁ +  U₁ = KE₂ + U₂

KE₁=Kinetic energy at location 1

U₁ =Potential energy at location 1

KE₂=Kinetic energy at location 2

U₂=Potential energy at location 2

Therefore, Raymond is thinking in a right way.

7 0
3 years ago
Earth orbits the sun once every
Karo-lina-s [1.5K]

Answer:1 trip around the earth is an angular displacement of 2*pi

3.6525*10^2 days

I

Explanation:24 h/1 day * 3.600*10^3 s/1h = 3.156*10^7 s

Angular speed = angular displacement / time

Angular speed = 2*pi rads / 3.156*10^7 s = 1.9910*10^-7 rad/s

3 0
3 years ago
Lightning flashed, and after 7 seconds there was a roll of thunder. To the nearest meter, determine how far lightning flashed fr
yaroslaw [1]

Answer:

you count and divide

Explanation:

3 0
4 years ago
Water is flowing into a factory in a horizontal pipe with a radius of 0.0183 m at ground level. This pipe is then connected to a
timama [110]

Answer:

0.0168 m^3/s

Explanation:

We are given that

r_1=0.0183 m

h_1=0

r_2=0.0420 m

h_2=12.6 m

Let P_1=P_2=P

By using Bernoulli theorem

P+\frac{1}{2}\rho v^2_1+\rho gh_1=P+\frac{1}{2}\rho v^2_2+\rho gh_2

\frac{1}{2}\rho v^2_1+\rho gh_1=\frac{1}{2}\rho v^2_2+\rho gh_2

v^2_1+2gh_1=v^2_2+2gh_2

A_1v_1=A_2v_2

v_1=\frac{A_2v_2}{A_1}

(\frac{A_2}{A_1})^2v^2_2+2g\times 0=v^2_2+2\times 9.8\times 12.6

(\frac{\pi r^2_2}{\pi r^2_1})^2v^2_2-v^2_2=246.96

v^2_2((\frac{r^2_2}{r^2_1})^2-1)=246.96

v^2_2=246.96\frac{r^4_1}{r^2_4-r^4_1}

v_2=\sqrt{246.96\frac{r^4_1}{r^4_2-r^4_1}}

v_2=\sqrt{246.96\times \frac{(0.0183)^4}{(0.042)^4-(0.0183)^4}}

v_2=3.038 m/s

Volume flow rate =A_2v_2

Volume flow rate =\pi r^2_2v_2=\pi (0.042)^2\times 3.038=0.0168 m^3/s

3 0
3 years ago
What does the area under a curve of a graph of velocity versus time yield? A. Average acceleration O B. Average velocity OC.Tota
frutty [35]

Answer:

option (D)

Explanation:

If we plot a graph between the velocity of the object and the time taken, the slope of graph gives the value of acceleration of the object and the area under the graph gives the product of velocity and time taken that means it is displacement

5 0
3 years ago
Read 2 more answers
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