A rifle with a barrel length of 59 cm fires a 9 g bullet with a...
A rifle with a barrel length of 59 cm fires a 9 g bullet with a horizontal speed of 420 m/s . The bullet strikes a block of wood and penetrates to a depth of 13 cm .How long does it take the bullet to come to rest after entering the wood? The resistive force which is assumed to be constant that the wood exerts on the bullet is 6100 N. How long does it take the bullet to come to rest after entering the wood?
Homework Answers
A rifle with a barrel length of 59 cm fires a 9 g bullet with a...
A rifle with a barrel length of 59 cm fires a 9 g bullet with a horizontal speed of 420 m/s . The bullet strikes a block of wood and penetrates to a depth of 13 cm .What resistive force (assumed to be constant) does the wood exert on the bullet? ( I got 6100 N but I am not sure if this is correct). How long does it take the bullet to come to rest after entering the wood?
A rifle with a barrel length of 64 cm fires a 12 g bullet with a...
A rifle with a barrel length of 64 cm fires a 12 g bullet with a horizontal speed of 420 m/s . The bullet strikes a block of wood and penetrates to a depth of 14 cm . A) What resistive force (assumed to be constant) does the wood exert on the bullet? B) How long does it take the bullet to come to rest after entering the wood?
A rifle fires a bullet. When the bullet leaves the barrel, it has a speed of...
A rifle fires a bullet. When the bullet leaves the barrel, it has a speed of 125 m/s. If the barrel is 45 cm long, what is the average acceleration of the bullet?
2. The iron sights on a rifle are adjusted for elevation based on the amount the...
2. The iron sights on a rifle are adjusted for elevation based on the amount the bullet will drop with distance. A rifle fires a 8 gram 7.62x39 bullet from a horizontal bench. The bench rest is elevated 1,4 from the ground. The bullet is observed to strike the ground at a distance of 1.2 km from the firing location. What was the muzzle velocity of the bullet? b. At what angle does the bullet hit the ground? c. If...
A 2 x 10^-3 kg bullet (m) is shot into a 5 kg block (M) of...
A 2 x 10^-3 kg bullet (m) is shot into a 5 kg block (M) of wood which is fixed to a friction less horizontal surface. The bullet hits the block at v = 500m/s 1) Calculate the magnitude of the momentum of the bullet as it hits the block. 2) The bullet embeds itself in the block. How much work is done by the resistive force due to the block in bringing the bullet to rest? 3) The average...
To determine the muzzle velocity of a bullet fired from a rifle, you shoot the 2.11-g...
To determine the muzzle velocity of a bullet fired from a rifle, you shoot the 2.11-g bullet into a 2.49-kg wooden block. The block is suspended by wires from the ceiling and is initially at rest. After the bullet is embedded in the block, the block swings up to a maximum height of 0.635 cm above its initial position. What is the velocity of the bullet on leaving the gun’s barrel? Ans: 416.890 m/s Please explain.
A gun fires a bullet vertically into a 1.40-kg block of wood at rest on a...
A gun fires a bullet vertically into a 1.40-kg block of wood at rest on a thin horizontal sheet.(Figure 1) If the bullet has a mass of 25.0 g and a speed of 310 m/s, how high will the block rise into the air after the bullet becomes embedded in it?
A 125-g bullet is fired from a rifle having a barrel 0.580 m long. Choose the...
A 125-g bullet is fired from a rifle having a barrel 0.580 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 16,000 + 10,000x − 26,000x2, where x is in meters. (a) Determine the work done by the gas on the bullet as the bullet travels the length of the barrel. (Enter your answer to at least two decimal...
A gun fires a bullet vertically into a 1.40-kg block of wood at rest on a...
A gun fires a bullet vertically into a 1.40-kg block of wood at
rest on a thin horizontal sheet.(Figure 1) If the bullet has a mass
of 13.5 g and a speed of 310 m/s, how high will the block rise into
the air after the bullet becomes embedded in it?
1.40 kg Qv 310 m/s
A rifle bullet with mass 7.00 g and initial horizontal velocity 290 m/s strikes and embeds...
A rifle bullet with mass 7.00 g and initial horizontal velocity 290 m/s strikes and embeds itself in a block with mass 0.993 kg that rests on a frictionless surface and is attached to one end of an ideal spring. The other end of the spring is attached to the wall. The impact compresses the spring a maximum distance of 14.0 cm . After the impact, the block moves in SHM. Calculate the period of its motion
2. The iron sights on a rifle are adjusted for elevation based on the amount the bullet will drop with distance. A rifle fires a 8 gram 7.62x39 bullet from a horizontal bench. The bench rest is elevated 1,4 from the ground. The bullet is observed to strike the ground at a distance of 1.2 km from the firing location. What was the muzzle velocity of the bullet? b. At what angle does the bullet hit the ground? c. If...
A gun fires a bullet vertically into a 1.40-kg block of wood at
rest on a thin horizontal sheet.(Figure 1) If the bullet has a mass
of 13.5 g and a speed of 310 m/s, how high will the block rise into
the air after the bullet becomes embedded in it?
1.40 kg Qv 310 m/s
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