9. A 170-g object is fired horizontally into a 2.25-kg block of wood suspended by a rope from the ceiling. The block swings in an arc, rising 46.0 cm in height above its lowest position. What was the speed of the object?

Q: 7. A horizontal spring with spring constant 85 N/m extends outward from a wall just above floor…

A: spring constant k=85 N/m mass of horizontal spring m=7.5 kg distance x=3.5 cm mass of sprinter m=…

Q: A 20 g wad of clay is launched at a 0.50 kg block of wood precariously balanced on the edge of a…

A: mass of wad of clay (m) = 20 g initial velocity of wad of clay = u mass of block of wood (M) = 0.50…

Q: A 4.80 g bullet is fired at 450 m/s toward a stationary 4.00 kg metal block causing the block to…

A: Given m=4.8g=mass of bullet M=4kg=mass of block u=450m/s=speed of bullet before collision…

Q: A physics student throws a 2.0-kg wad of clay at the wall of the physics classroom with a speed of…

A:

Q: A 10 kg box is dropped such that it hits a beam with a velocity of 2 m/s. After impact, the box…

A:

Q: 2. A 3-kg firework flies in a straight line with an initial velocity of 150 m/s and bursts into two…

A:

Q: An 18g bullet is fired into 4kg block that is suspended from the ceiling by ropes. The bullet comes…

A:

Q: ders move on frictionless track.  If the cars all collide at the same time and couple together, find…

A: Given:- 3 gliders move on a frictionless track.  If the cars all collide at the same time and couple…

Q: 8. A rifle bullet with mass m strikes and embeds itself in a block of mass M that rests on a…

A:

Q: A 2.5-kg ball and a 5.0-kg ball have an elastic collision. Before the collision, the 2.5-kg ball was…

A: m1 = 5 kgm2 = 2.5 kgv1i = 3.5 m/sKinetic energy of 2.5 kg object is to be calculated.

Q: A 0.10 kg bullet moving 250 m/s hits a 5.0 kg block of wood at rest. If the bullet becomes embedded…

A: From the conservation of linear momentum, the momentum of the system before collision must be equal…

Q: A golf ball of mass 50 grams is struck and has a velocity of 70 m/s when it leaves the tee.  The…

A: Given, mass of golf, m = 50g = 0.05 kgvelocity whent it leaves the tee , v = 70 m/stime taken to…

Q: 3. A 1570-kilogram truck moving with a speed of 28.0 m/s runs into the rear end of a 1280-kilogram…

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Q: 45-g baseball was hit with an average force of 115 N over a distance of 5.75 m. What is the speed of…

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Q: 9 A 75-g projectile traveling at 600 m/s strikes and becomes embedded in the 50-kg block, which is…

A:

Q: A 10 g bullet is fired into a 10 kg wood block that is at rest on a wood table. The block, with the…

A: Given: The mass of the bullet is m=10 g. The mass of the block is m’=10 kg. The distance traveled…

Q: Before an elastic collision of two balls of 2.0 kg each, the kinetic energies of two balls are…

A: Mass of first ball , m1 = 2.0 kg Mass of second ball, m2 = 2.0 kg Kinetic energy of m1 before…

Q: 9. In target practice, a thick board stops a bullet at a penetration depth of 5.80 cm. Use the…

A: Given  Mass of bullet, m = 7.50 g  Initial speed ,V = 650 m/s  Thickness 1, t1 = 5.80 cm  Thickness…

Q: By an explosion, a stationary object is shattered into two pieces: A and B. The kinetic energy of…

A: As the object is at rest before the explosion it has a momentum that is zero. Since no external…

Q: A 81.8 g marble moving at 14.6 m/s approaches and collides head-on with a stationary 45.7 g marble.…

A:

Q: A ball rolls off the top of a stair and steps down a total height of 3.00 m. The ball hits three…

A: Given Balls roll of from 3 m height Each step height = 1 m each collision are elastic collision We…

Q: 2. π The circular arc shown below has a radius R and extends from- -to The arc carries a 3…

A: Here in this question, we will consider an elementary arc length (dl), and then we can find the…

Q: 5. A 360 gram cart and a heavier 480 gram cart are initially moving at a speed of 0.45 m/s to the…

A: Scenario: Two carts of different masses initially moving right are suddenly pushed away from each…

Q: 10. Each croquet ball in a set has a mass of 0.53 kg. The green ball, traveling at 11.9 m/s, strikes…

A:

Q: A 1kg object with initial speed v collides with a 2kg object (which is initially standing still).…

A: Out of the given options, the following statements are true:More than 50% of the initial kinetic…

Q: A 0.5 kg block slides along a horizontal frictionless surface at 2.5m/s. It is brought to rest by…

A: concept: conservation of energy : energy can neither be created nor be destroyed but can transferred…

Q: or the parts to reach the g parts hit the ground at the ween the points on the ar

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Q: A basket ball with a diameter of D=0.4 (m) with a mass of M and a very small (point) ball with mass…

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Q: The Dread Pirate Roberts is trying to fire a 12 kg cannon ball from a 250 kg cannon. In order to…

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Q: Bullet of mass 105 grams, hits the stationary block of mass 15,190g (originally frictionless…

A:

Q: A 7.3kg bowling ball collides with a 1.5kg pin that was at rest. Before the collision the ball speed…

A: Given:  mass of ball, M= 7.3 kg  mass of pin, m = 1.5 kg  speed of ball before collision, U = 6 m/s…

Q: An archer shoots an arrow toward a 300-g target that is sliding in her direction at a speed of 2.45…

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Q: 008 47. . A dropped rubber ball hits the floor with a speed of 8.0 m/s and rebounds to a height of…

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Q: A 1.72 kg block of soft wood is suspended by two strings from the ceiling. The wood is free to…

A: The conservation of energy can be written as, KEi+PEi=KEf+PEfas…

Q: Researchers studying the possible effects of “heading” a soccer ball--hitting it with the head--use…

A: The area under the Force-time graph gives the change in the momentum or impulse.

Q: A bullet with a mass of 500 g and a speed of 10.0 m / s crashes head-on into a stationary positioned…

A:

Q: A 5.50-kg object is initially moving so that its x-component of velocity is 6.00 m/s and y-component…

A: Given that:-Mass, m=5.50 kgVx=6 m/secVy=-1.90 m/secWe know that:-V=Vx2+Vy2=6 m/sec+-1.90 m/sec2=6.29…

Q: A tennis ball bouncing on a hard surface compresses and then rebounds. The details of the rebound…

A: Given: The mass of the tennis ball is 57.5 g. The height from which it is dropped is 2.5 m. The…