physics

The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v = (-4.25 107) t 2 + (3.45 105) t, where v is in meters per second and t is in seconds. The acceleration of the bullet just as it leaves the barrel is zero.
(a) Determine the acceleration and position of the bullet as a function of time when the bullet is in the barrel. (Use t as necessary and round all numerical coefficients to exactly 3 significant figures.)
a = m/s2
x = m

(b) Determine the length of time the bullet is accelerated.
s

(c) Find the speed at which the bullet leaves the barrel.
m/s

(d) What is the length of the barrel?
m

asked by Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A rifle shoots a 4.1g bullet out of it's barrel. The bullet has a muzzle velocity of 975 m/s just as it leaves the barrel. Assuming a constant horizontal acceleration over a distance of 43.0 cm starting from rest, with no friction
  2. physics

    The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v=(-5.00×10^7)t^2 + (3.00×10^5)t where v is in meters per second and t is in seconds. The acceleration of the bullet just as it leaves
  3. science

    The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by v = (-4.25 10^7) t^2 + (3.45 10^5) t, where v is in meters per second and t is in seconds. The acceleration of the bullet just as it
  4. physics

    The barrel of a rifle has a length of 0.976 m. A bullet leaves the muzzle of a rifle with a speed of 561 m/s. What is the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have constant
  5. Physics

    The barrel of a rifle has a length of 0.916m. A bullet leaves the muzzle of a rifle with a speed of 621m/s. What is the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have a constant
  6. physics

    1) a bullet of mass 0.02 kg is fired into a block of wood of mass 1.5 kg resting on a horizontal table. The block moves offwith an initial speed of 8 m/s. Estimate the speed with the bullet strikes the block. 2) The bullet in
  7. physics

    When a bullet leaves a barrel of a rifle, it is moving 640 m/s. If the barrel is 1.20 m long, and if the bullet undergoes constant acceleration while within the barrel, how long after the rifle is fired will the bullet emerge from
  8. physics

    The barrel of a rifle has a length of 0.97m. A bullet leaves the muzzle of a rifle with a speed of 601m/s. What is the acceleration of the bullet while in the barrel?
  9. Physics

    When an 8-lb rifle is fired, the 0.02-lb bullet receives an acceleration of 10^5 ft/s^2 while it is the barrel? (a) How much force acts on the bullet? (b) Does any force act on the rifle? If so, how much and in what direction? (c)
  10. Physics

    A 153 g bullet is fired from a rifle having a barrel 0 . 794 m long. Assuming the origin is placed where the bullet begins to move, the force exerted on the bullet by the expanding gas is F = a + bx − cx 2 , where a = 12600

More Similar Questions