Question

In: Physics

1.A bullet with a mass of 45 g is fired into a 8.3-kg block of wood...

1.A bullet with a mass of 45 g is fired into a 8.3-kg block of wood resting on a floor against a spring. This ideal spring (k = 76 N/m) has a maximum compression of 28 cm. What was the initial speed of the bullet?

2.Two common and identical carts are used to perform an experiment. Cart A is pushed toward the stationary cart B with a velocity of 2.6 m/s. After the collision, cart A bounces back with a speed of 0.8 m/s and cart B moves of with a speed of 3.4 m/s. Why is this not possible?

Solutions

Expert Solution

also final energy can be equal or less than initial enegry but in this case it is greater than initial energy which is not possible in any physical phenomenon and hence this collision is not possible.

genius_generous answered 2 years ago
Next > < Previous

Related Solutions

In Fig. 8.3, a bullet of mass 0.01 kg moving horizontally strikes a block of wood...
In Fig. 8.3, a bullet of mass 0.01 kg moving horizontally strikes a block of wood of mass 1.5 kg which is suspended as a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m. What was the velocity of the bullet just before it struck the wooden block? The length of the string is 2 meters.
A 3.9 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired...
A 3.9 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed of 430 m/s , goes completely through the block, emerging at a speed of 200 m/s . Part A: Consider a system of both objects. Is momentum conserved in this situation? Explain. Part B: For the same system of both objects, is kinetic energy conserved? Explain. Part C: What is the speed of the block immediately after the bullet exits?...
A(n) 6.7-g bullet is fired from a gun into a 0.90-kg block of wood held in...
A(n) 6.7-g bullet is fired from a gun into a 0.90-kg block of wood held in a vise. The bullet penetrates the block to a depth of 9.00 cm. An identical block of wood (with no bullet inside) is next placed on a frictionless horizontal surface, and a second identical bullet is fired from the same gun into the block. How much smaller is the penetration depth in the second case? (Hint: The depth in the second case should be...
A 12.7 g bullet is fired into a block of wood at 245 m/s. The block...
A 12.7 g bullet is fired into a block of wood at 245 m/s. The block is attached to a spring constant of 205 N/m. The block and bullet continue to move, compressing the spring by 35.0 cm before the whole system momentarily comes to a stop. Assuming that the surface on which the block is resting is frictionless, determine the mass of the wooden block.
A bullet of mass m = 8.00 g is fired into a block of mass M...
A bullet of mass m = 8.00 g is fired into a block of mass M = 220 g that is initially at rest at the edge of a table of height h = 1.00 m (see figure below). The bullet remains in the block, and after the impact the block lands d = 2.10 m from the bottom of the table. Determine the initial speed of the bullet. ___m/s
A bullet of mass m = 8.00 g is fired into a block of mass M...
A bullet of mass m = 8.00 g is fired into a block of mass M = 210 g that is initially at rest at the edge of a table of height h = 1.00 m (see figure below). The bullet remains in the block, and after the impact the block lands d =  1.90 m from the bottom of the table. Determine the initial speed of the bullet. ________m/s
A bullet of mass m = 29 g is fired into a wooden block of mass...
A bullet of mass m = 29 g is fired into a wooden block of mass M = 4.9 kg as shown in the figure below. The block is attached to a string of length 1.5 m. The bullet is embedded in the block, causing the block to then swing as shown in the figure. If the block reaches a maximum height of h = 0.27 m, what was the initial speed of the bullet?
A bullet with a mass m b = 11.5 g is fired into a block of...
A bullet with a mass m b = 11.5 g is fired into a block of wood at velocity v b = 265 m/s. The block is attached to a spring that has a spring constant k of 205 N/m. The block and bullet continue to move, compressing the spring by 35.0 cm before the whole system momentarily comes to a stop. Assuming that the surface on which the block is resting is frictionless, determine the mass of the wooden...
A bullet with a mass m b = 13.1 g is fired into a block of...
A bullet with a mass m b = 13.1 g is fired into a block of wood at velocity v b = 245 m/s. The block is attached to a spring that has a spring constant k of 205 N/m. The block and bullet continue to move, compressing the spring by 35.0 cm before the whole system momentarily comes to a stop. Assuming that the surface on which the block is resting is frictionless, determine the mass of the wooden...
A bullet of mass m=11 gr is fired into a block of mass M=1 kg initially...
A bullet of mass m=11 gr is fired into a block of mass M=1 kg initially at rest at the edge of a frictionless table of height h=1.10 m. The bullet remains in the block and the block lands a distance d=0.67 m from the bottom of the table. a)Determine the initial velocity of the bullet. b) Determine the loss of kinetic Energy during the collision.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT