How do you find the initial velocity of a bullet?

It can be solved easily by considering the conservation of momentum and change of kinetic energy to potential energy. At first lets apply conservation of momentum. mv=(M+m)V where V is the final velocity of the system.

Is the initial velocity of a bullet 0?

See, the bullet’s initial velocity (“u”) here is zero because it starts from rest (assuming it has not been fired yet). It attains a final velocity (“v”) after being subjected to an acceleration (“a”). Use v=u+at to get the final velocity of the bullet.

What is the velocity of a bullet?

“The velocity (speed) of rifle bullets varies between 600 and 5000 feet (180 and 1500 meters) per second. Some bullets can hit targets as far away as 6000 yards (5000 meters).”

What is initial velocity?

Initial Velocity is the velocity at time interval t = 0 and it is represented by u. It is the velocity at which the motion starts.

How do you calculate velocity?

Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.

How many planks are required to stop the bullet?

Complete answer: As the velocity decreases, energy gets lost. Now, let the number of planks after which velocity becomes 0 be N. Thus, $\dfrac {{n}^{2}}{2n-1}$ planks will be required to stop the bullet.

What is the symbol for initial velocity?

symbol v0
The symbol v0 [vee nought] is called the initial velocity or the velocity a time t = 0. It is often thought of as the “first velocity” but this is a rather naive way to describe it.

Is height a function of time?

Its height above the ground, as a function of time, is given by the function, where t is in seconds and H(t) is in inches. At t = 0, it’s 30 inches above the ground, and after 4 seconds, it’s at height of 18 inches. The graphs show the yo-yo’s height, velocity, and acceleration functions from 0 to 4 seconds.

How do you calculate the velocity of a bullet?

With a flourish, you explain that solving for vi gives you the bullet’s initial velocity: This should be simplified to: You measure that the bullet has a mass of 50 grams, that the wooden block has a mass of 10.0 kilograms, and that upon impact, the block rises 50.0 centimeters into the air. Plugging in those values gives you your result:

Which is the correct equation for the velocity of a wave?

So f(x-vt) represents a rightward, or forward, propagating wave. Similarly, f(x+vt) represents a leftward, or backward, propagating wave. v is the velocity of the wave. -4 -2 0 2 4 6 f(x) f(x-1) f(x-2) f(x-3) The wave equation in one dimension Later, we will derive the wave equation from Maxwell’s equations.

Which is the velocity of a backward propagating wave?

Similarly, f(x+vt) represents a leftward, or backward, propagating wave. v is the velocity of the wave. -4 -2 0 2 4 6 f(x) f(x-1) f(x-2) f(x-3) The wave equation in one dimension Later, we will derive the wave equation from Maxwell’s equations. Here it is, in its one-dimensional form for scalar (i.e., non-vector) functions, f.

How to find the initial velocity of a vehicle?

1 Initial velocity: Vi = Vf – (a * t) 2 Understand what each symbol stands for. Vi stands for “initial velocity” Vf stands for “final velocity” a stands for “acceleration” t stands for “time” 3 Note that this equation is the standard equation used when finding initial velocity.