1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Crazy boy [7]
3 years ago
8

Imagine that the ball on the left is given a nonzero initial velocity in the horizontal direction, while the ball on the right c

ontinues to fall with zero initial velocity. What horizontal speed vx must the ball on the left start with so that it hits the ground at the same position as the ball on the right?
Physics
1 answer:
expeople1 [14]3 years ago
8 0

Answer:

vₓ = g/2   x/y

Explanation:

For this exercise, let's find the time it takes for the ball on the right that has zero initial velocity to reach the ground.

              y = v₀ t - ½ g t²

               t = 2y / g

This is the time it takes for the ball on the right to reach the ground; at this time the ball on the left travels a distance

              vₓ = x / t

              vₓ = x g /2y

             vₓ = g/2   x/y

Where we assume that x and y are known

You might be interested in
An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. The maximum speed of the o
Readme [11.4K]
<span>Object's speed is max when passing through 0 displacement.
Object's acceleration is max at either end of its oscillation, and these two times are 1/4 period apart.
y = A sin (wt)
v= Aw cos(wt)
a = - A (w^2) sin (wt)
 
v max = Aw
 a max= -A w^2
 These relations can give you w= 2 pi/ T where T = period of oscillation.</span>
5 0
3 years ago
Microwaves travel at the speed of light, 300,000 km/s. What is the wavelength of a microwave received at 1000 gigahertz?
n200080 [17]

Answer:

3 x 10⁻⁴m

Explanation:

Given parameters:

Speed of light  = 300000km/s

Frequency  = 1000gigahz  = 1000 x 10⁹Hz

Unknown:

Wavelength = ?

Solution:

To solve this problem, we use the expression below:

    V  = F ∧  

V is the speed

F is the frequency

∧ is the wavelength

      300000 = 1000 x 10⁹ x   ∧  

Wavelength  = 3 x 10⁻⁷km = 3 x 10⁻⁴m

7 0
3 years ago
.
ludmilkaskok [199]

Answer:

1) ironing a shirt 2) writing on surfaces 3) working of an eraser

5 0
3 years ago
A projectile is launched horizontally at a speed of 40 meters per second from a platform located a vertical distance h above the
KATRIN_1 [288]

Answer:1

Explanation:t=rad2h/g

4 0
3 years ago
Please help asap! Thank you.
olganol [36]

Answer:

direct current

Explanation:

it has a direct path to go down to reach the specific point

4 0
3 years ago
Read 2 more answers
Other questions:
  • ASAP!!!<br> I need help on this question!
    7·1 answer
  • Which is an example of an unethical decision?
    11·1 answer
  • Which law of motion is this an example of?
    5·1 answer
  • The gravitational force between two objects is _____ proportional to the product of the masses of the objects.
    15·2 answers
  • charles law states that at a constant pressure , the volume of a given amount of gas is _____ to its absolute temperature.
    11·2 answers
  • A 65.0-kg runner has a speed of 5.20 m/s at one instant dur- ing a long-distance event. (a) What is the runner’s kinetic energy
    11·1 answer
  • Why is the force of gravity less on the moon than on Earth
    15·2 answers
  • A conducting bar moves along a circuit with a constant velocity. A constant magnetic field is perpendicular to the bar and circu
    8·1 answer
  • Speed is different from velocity because
    11·2 answers
  • A car moving at 60 mph slams on its brakes to stop before hitting a deer. Another identical car traveling at 60 mph slows to a s
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!