A 5.5 g dart is Fired into a block of wood with a mass of 22.6g. The wood block is initially at rest on a 1.5m tall post. After the collision, the wood block and dartland 2.5 m from the base of the post. What is the initial speed of the dart?
(1) A moving object has a kinetic energy of 119 J and a momentum with magnitude of 28.0 kg·m/s. (a) Determine the mass of the object. ______ kg (b) Determine the speed of the object. ______m/s (2) A 5.1 g dart is fired into a block of wood with a mass of 24.2 g. The wood block is initially at rest on a 1.6 m tall post. After the collision, the wood block and dart land 3.4 m from the...
A bullet of mass 12.5 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.12 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4.70 m/s. (a) Find the initial speed of the bullet. (b) How much kinetic energy is lost?
A bullet of mass 10.2 g is fired into an initially stationary block and comes to rest in the block. The block, of mass 1.23 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 5.80 m/s. (a) Find the initial speed of the bullet. (b) How much kinetic energy is lost?
A 9.5-g bullet is fired into a stationary block of wood having mass m = 4.99 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.606 m/s. What was the original speed of the bullet?
A 10.4-g bullet is fired into a stationary block of wood having mass m = 4.99 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.592 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.)
A 9.7-g bullet is fired into a stationary block of wood having mass m = 5.02 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.610 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.)
A 9.5-g bullet is fired into a stationary block of wood having mass m = 5.04 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.593 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.) m/s
12. (20 points) A 5 gram bullet is fired at a wood block that is supported at rest on a smooth incline plane (no friction) at an angle of theta above the horizontal. The bullet is fired with a speed of 500 m/s, but then impacts and passes straight through the wood block, coming out the other side with a speed of 400 m/s. As a result of the collision, the wood block slides up the ramp 5 cm from...
7.HW. A bullet is fired into a block of wood sitting on a block of ice. The bullet has an initial velocity of 500m/s and a mass of 0.005kg. The wooden block has a mass of 1.2kg and is initially at rest. The bullet remains embedded in the wood afterward. (so hit and stick situation) A)Assuming that momentum is conserved, find the velocity of the block of wood and bullet after the Collision. (so momentum before = momentum. V1’=V2'=V') B)What...