A spring powered gun has Hooke's constant k. The spring is compressed by length 6 and shoots a pellet (mass = m) horizontally from height h above ground level. Calculate (A) the initial speed of the pellet. When the pellet hits the ground, what are (B) the speed and (C) the horizontal distance? [Data: k = 75 N/m; 8 = 3.4 cm; m = 15 grams; h = 1.22 m ] 2.404X10^-3 m/s LO .4989 s 1.199X10 -3 m Incorrect. --- ▬▬▬▬▬▬ Incompatible units. No conversion found between "s" and the required units. Unable to interpret units. Computer reads units as "-3*m". ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ -|▬▬OMOGO TICO

A spring powered gun has Hooke's constant k. The spring is compressed by length 6 and shoots a pellet (mass = m) horizontally from height h above ground level. Calculate (A) the initial speed of the pellet. When the pellet hits the ground, what are (B) the speed and (C) the horizontal distance? [Data: k = 75 N/m; 8 = 3.4 cm; m = 15 grams; h = 1.22 m ] 2.404X10^-3 m/s LO .4989 s 1.199X10 -3 m Incorrect. --- ▬▬▬▬▬▬ Incompatible units. No conversion found between "s" and the required units. Unable to interpret units. Computer reads units as "-3*m". ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ -|▬▬OMOGO TICO

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 79AP: Consider a block of mass 0.200 kg attached to a spring of spring constant 100 N/m. The block is...

See similar textbooks

Similar questions

Consider a block of mass 0.200 kg attached to a spring of spring constant 100 N/m. The block is placed on a frictionless table, and the other end of the spring is attached to the wall so that the spring is level with the table. The block is then pushed in so that the spring is compressed by 10.0 cm. Find the speed of the block as it crosses (a) the point when the spring is not stretched, (b) 5.00 cm to the left of point in (a), and (c) 5.00 cm to the right of point in (a).
A block of mass 0.500 kg is pushed against a horizontal spring of negligible mass until the spring is compressed a distance x (Fig. P7.79). The force constant of the spring is 450 N/m. When it is released, the block travels along a frictionless, horizontal surface to point , the bottom of a vertical circular track of radius R = 1.00 m, and continues to move up the track. The blocks speed at the bottom of the track is = 12.0 m/s, and the block experiences an average friction force of 7.00 N while sliding up the track. (a) What is x? (b) If the block were to reach the top of the track, what would be its speed at that point? (c) Does the block actually reach the top of the track, or does it fall off before reaching the top?
Calculate the elastic potential energy of a spring with spring constant k = 225 N/m that is (a) compressed and (b) stretched by 1.00 102 m.
At 220 m, the bungee jump at the Verzasca Dam in Locarno, Switzerland, is one of the highest jumps on record. The length of the elastic cord, which can be modeled as having negligible mass and obeying Hookes law, has to be precisely tailored to each jumper because the margin of error at the bottom of the dam is less than 10.0 m. Kristin prepares for her jump by first hanging at rest from a 10.0-m length of the cord and is observed to stretch the rope to a total length of 12.5 m. a. What length of cord should Kristin use for her jump to be exactly 220 m? b. What is the maximum acceleration she will experience during her jump?
An inclined plane of angle = 20.0 has a spring of force constant k = 500 N/m fastened securely at the bottom so that the spring is parallel to the surface as shown in Figure P6.61. A block of mass m = 2.50 kg is placed on the plane at a distance d = 0.300 m from the spring. From this position, the block is projected downward toward the spring with speed v = 0.750 m/s. By what distance is the spring compressed when the block momentarily comes to rest?
True or False: The elastic potential energy of a stretched or compressed spring is always positive.
If the net work done by external forces on a particle is zero, which of the following statements about the particle must be true? (a) Its velocity is zero. (b) Its velocity is decreased. (c) Its velocity is unchanged. (d) Its speed is unchanged. (e) More information is needed.
Jane, whose mass is 50.0 kg, needs to swing across a river (having width D) filled with person-eating crocodiles to save Tarzan from danger. She must swing into a wind exerting constant horizontal force F, on a vine having length L and initially making an angle with the vertical (Fig. P7.81). Take D = 50.0 m, F = 110 N, L = 40.0 m, and = 50.0. (a) With what minimum speed must Jane begin her swing to just make it to the other side? (b) Once the rescue is complete, Tarzan and Jane must swing back across the river. With what minimum speed must they begin their swing? Assume Tarzan has a mass of 80.0 kg.
As shown in Figure P7.20, a green bead of mass 25 g slides along a straight wire. The length of the wire from point to point is 0.600 m, and point is 0.200 in higher than point . A constant friction force of magnitude 0.025 0 N acts on the bead. (a) If the bead is released from rest at point , what is its speed at point ? (b) A red bead of mass 25 g slides along a curved wire, subject to a friction force with the same constant magnitude as that on the green bead. If the green and red beads are released simultaneously from rest at point , which bead reaches point first? Explain. Figure P7.20
A block of mass 0.245 kg is placed on top of a light, vertical spring of force constant 4 800 N/m and pushed down so that the spring is compressed by 0.099 m. After the block is released from rest, it travels upward and then leaves the spring. To what maximum height above the point of release does it rise?
An elevator car of mass 805 kg falls from rest 3.30 m, hits a buffer spring, and then travels an additional 0.370 m, as it compresses the spring by a maximum of 0.370 m. What is the force constant of the spring?
a spring gun with a spring constant of 9800 N/m is compressed 10cm from its natural length and then shoots a ball of 1 kg vertically upward. what is the maximum height the ball can reach (in meter)?