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How do you find the velocity of a projectile when it hits the ground?

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How do you find the velocity of a projectile when it hits the ground?

Multiply the time by the acceleration due to gravity to find the velocity when the object hits the ground. If it takes 9.9 seconds for the object to hit the ground, its velocity is (1.01 s)*(9.8 m/s^2), or 9.9 m/s.

What is the final velocity of the ball just before it hits the ground?

Conclusion: The magnitude of the velocity of the ball is 26.3 m/s for the parabolic motion just before it hits the ground and this greater than the 17.1 m/s for the velocity of the ball that falls straight downward.

How do you find velocity in VX and VY?

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Projectile motion equations

  1. Horizontal velocity component: Vx = V * cos(α)
  2. Vertical velocity component: Vy = V * sin(α)
  3. Time of flight: t = 2 * Vy / g.
  4. Range of the projectile: R = 2 * Vx * Vy / g.
  5. Maximum height: hmax = Vy² / (2 * g)

How do you find the resultant velocity?

Divide the total momentum by the sum of the masses if the two objects stick together after impact. This will give you the resultant velocity of the two objects. In the example above, we would take 50 and divide by the sum of the masses, which is 10, getting a result of 5 meters per second.

What is VX VY?

Vx is the speed where you have the most excess force (thrust), and Vy is the speed where you have the most excess power (horsepower).

Are speed and velocity vectors?

Speed is a scalar quantity and does not keep track of direction; velocity is a vector quantity and is direction aware.

What is resultant speed?

The resultant velocity of an object is the sum of its individual vector velocities. ■ The sum of the vector forces on an object is equal to the scalar product of the object’s mass and its acceleration vector.

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How do you find horizontal speed?

Divide Displacement by Time Divide the horizontal displacement by time to find the horizontal velocity. In the example, Vx = 4 meters per second.

What is the velocity of a bullet fired at an angle?

A bullet fired at an angle θ = 60o with a velocity of 20 m/s. Acceleration due to gravity is 10 m/s2. What is the time interval to reach the maximum height?

Why do Bullets not hit the ground when fired horizontally?

That means we can’t treat horizontal motion and vertical motion as independent. Therefore, the fired bullet does not hit the ground at the same time as the dropped bullet, the bullet fired horizontally will take a longer time to fall to the Earth. If playback doesn’t begin shortly, try restarting your device.

How do you measure the speed of a bullet?

Ballistic pendulum A ballistic pendulum is a device used to measure the speed of a bullet. A bullet of mass m is fired at a block of wood (mass M) hanging from a string. The bullet embeds itself in the block, and causes the combined block plus bullet system to swing up a height h.

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What is the air resistance of a fired bullet?

The air resistance provides a drag force which is proportional to the square of the velocity and in the direction opposite to the velocity of the bullet. The vertical component of the air resistance for the fired bullet depends on the velocity of the bullet.