Question

In: Physics

A 0.500 kg hammer is moving horizontally at 6.50 m/s when it strikes a nail and...

A 0.500 kg hammer is moving horizontally at 6.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board.
(a) Calculate the duration of the impact in seconds.
(b) Calculate the impulse imparted.
(c) What was the average force exerted on the nail?

(a) 0.00308 s (b) 6.25 kg.m/s (c) 6055 N

(a) 0.30342 s (b) 3.25 kg.m/s (c) 1055 N

(a) 0.00308 s (b) 3.25 kg.m/s (c) 1655 N

(a) 0.00308 s (b) 3.25 kg.m/s (c) 1055 N

(a) 0.00308 s (b) 1.25 kg.m/s (c) 1055 N

A thin block of soft wood with a mass of 0.070 kg rests on a horizontal frictionless surface. A bullet with a mass of 4.67 g is fired with a speed of 629 m/s at a block of wood and passes completely through it. The speed of the block is 25 m/s immediately after the bullet exits the block.
(a) Determine the speed of the bullet as it exits the block.
(b) Determine the loss of kinetic energy of this system (block and bullet).

Question 3 options:

(a) 254 m/s (b) 173 J

(a) 254 m/s (b) 924J

(a) 654 m/s (b) 751 J

(a) 254 m/s (b) 751 J

(a) 466 m/s (b) 751 J

Expert Solution

The detailed solution is given below.

genius_generous answered 4 months ago

A 0.0210 kg bullet moving horizontally at 500 m/s embeds itself into an initially stationary 0.500...

A 0.0210 kg bullet moving horizontally at 500 m/s embeds itself into an initially stationary 0.500 kg block. (a) What is their velocity just after the collision? _____ m/s (b) The bullet-embedded block slides 8.0 m on a horizontal surface with a 0.30 kinetic coefficient of friction. Now what is its velocity? _____ m/s (c) The bullet-embedded block now strikes and sticks to a stationary 2.00 kg block. How far does this combination travel before stopping? ____ m

A 8-g bullet moving horizontally with speed of 250 m/s strikes and remains in a 4.0-kg...

A 8-g bullet moving horizontally with speed of 250 m/s strikes and remains in a 4.0-kg block initially at rest on the edge of a table. The block, which is initially 80 cm above the floor, strikes the floor a horizontal distance from the base of table. What is the horizontal distance on the floor?

A cue ball (0.17 kg) is moving at a velocity of 11.3 m/s when it strikes...

A cue ball (0.17 kg) is moving at a velocity of 11.3 m/s when it strikes two billiard balls (0.16kg), at rest, "dead center" and comes to rest. If one billiard ball moves at a velocity of 4.1 m/s at an angle of 39 radians measured clockwise relative to the incoming direction of the cue ball, and another ball moves at an angle measured counter-clockwise relative to the incoming direction of the cue ball, how fast is the second ball...

1-A bullet moving horizontally with a speed of 600 m/s strikes a sandbag and continues for...

1-A bullet moving horizontally with a speed of 600 m/s strikes a sandbag and continues for a distance of 20 cm. A-What is the average acceleration of the bullet? B-How long does it take to come to rest? 2-A 45.0 kg skier, starting from rest, begins skiing straight down an incline on the mountain of 12.5. The coefficient of kinetic friction between skis and snow is 0.08. A-Draw a free body diagram of the skier and the forces acting on...

1) A ball 1 with a mass of 2.0 kg and moving at 2.0 m/s strikes...

1) A ball 1 with a mass of 2.0 kg and moving at 2.0 m/s strikes a glancing blow on a second ball 2 which is initially at rest. Assume no external forces act. After the collision, ball 1 is moving at right angles to its original direction at a speed of 3.0 m/s. (a) Calculate the initial momentum of the system. (b) Determine the magnitude of the momentum of Ball 2 after the collision? (c) In what direction is...

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 boxed 15.0 kg computer monitor is dragged by friction 6.50 m up along the moving...

A boxed 15.0 kg computer monitor is dragged by friction 6.50 m up along the moving surface of a conveyor belt inclined at an angle of 36.8 ∘ above the horizontal. If the monitor's speed is a constant 3.00 cm/s , how much work is done on the monitor by friction, gravity, and the normal force of the conveyor belt? Wfriction = Wgravity = WN =

A 144-g baseball moving 29 m/s strikes a stationary 5.25-kg brick resting on small rollers so...

A 144-g baseball moving 29 m/s strikes a stationary 5.25-kg brick resting on small rollers so it moves without significant friction. After hitting the brick, the baseball bounces straight back, and the brick moves forward at 1.21 m/s . A)Determine the baseball's speed after the collision. B)Determine the total kinetic energy before the collision. C)Determine the total kinetic energy after the collision.

A 4.00 g bullet is moving horizontally with a velocity of +355 m/s as shown in...

A 4.00 g bullet is moving horizontally with a velocity of +355 m/s as shown in figure below. The bullet is approaching two blocks resting on a horizontal frictionless surface. The bullet passes completely through the first block (an inelastic collision) and embeds itself in the second one, as shown in part (b). Note that both blocks are moving after the collision with the bullet. The mass of the first block is 1150 g and its velocity is +0.550 m/s...

A 1700 kg car moving east at 17 m/s collides with a 1800 kg car moving...

A 1700 kg car moving east at 17 m/s collides with a 1800 kg car moving south at 20 m/s, and the two cars stick together. Consider east the positive x-direction and north the positive y-direction. a) What is the x-component of the initial momentum before the collision? ( -7100 kg·m/s, 64900 kg·m/s or 28900 kg·m/s) b) What is the y-component of the initial momentum before the collision? (-36000 kg·m/s, -7100 kg·m/s, 64900 kg·m/s or 36000 kg·m/s) c) What is...