2. A block of mass m=1 kg is held compressing a spring a distance z=0.5 m on a smooth horizontal table. The force constant for the spring is k-100 N/m and the table is h=1 m above the ground. If the block is released from rest, what is the speed in m/s of the block just before hitting the ground? (a) 4.90 (b) 5.39 (c) 6.00 (d) 6.71 (e) 7.48

2. A block of mass m=1 kg is held compressing a spring a distance z=0.5 m on a smooth horizontal table. The force constant for the spring is k-100 N/m and the table is h=1 m above the ground. If the block is released from rest, what is the speed in m/s of the block just before hitting the ground? (a) 4.90 (b) 5.39 (c) 6.00 (d) 6.71 (e) 7.48

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

7. A dart gun includes a spring of spring constant k = 14 N/m which is used to shoot a dart of mass m. The dart leaves the gun at a speed of v = 6.9 m/s after the spring is compressed 1 cm. Part (a) What is the weight, Fg in Newtons, of the dart? Part (b) What is the dart’s speed when it hits the floor vf, in m/s, if it is fired horizontally at a height of h = 2 meters? Part (c) What angle, θ in degrees, does the dart's final velocity make with the horizontal?
A toy gun uses a spring to project a 6.3-g soft rubber sphere horizontally. The spring constant is 8.0 N/m, the barrel of the gun is 17 cm long, and a constant frictional force of 0.039 N exists between barrel and projectile. With what speed does the projectile leave the barrel if the spring was compressed 6.9 cm for this launch? (Assume the projectile is in contact with the barrel for the full 17 cm.)
A 4.00 ✕ 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.300 m by a large spring bumper at the end of its track. What is the force constant k of the spring (in N/m)? Answer___________ N/m
A toy cannon uses a spring to project a 5.40-g soft rubber ball. The spring is originally compressed by 5.09 cm and has a force constant of 7.97 N/m. When the cannon is fired, the ball moves 16.0 cm through the horizontal barrel of the cannon, and the barrel exerts a constant friction force of 0.032 3 N on the ball. (a) With what speed does the projectile leave the barrel of the cannon? m/s (b) At what point does the ball have maximum speed? cm (from its original position) (c) What is this maximum speed? m/s
I have tried this problem several times how do I do it correctly?
A spring gun (spring constant k=100 N/m) is used to shoot a 10 g ball vertically up. Spring is compressed by 10 cm. a) What is the speed of the ball when it leaves the gun? 1. b) What is the maximum height of the ball above the release point?
A toy gun uses a spring to project a 5.4-g soft rubber sphere horizontally. The spring constant is 8.0 N/m, the barrel of the gun is 17 cm long, and a constant frictional force of 0.034 N exists between barrel and projectile. With what speed does the projectile leave the barrel if the spring was compressed 6.1 cm for this launch? (Assume the projectile is in contact with the barrel for the full 17 cm.)
You give a crate of mass m = 1.00 kg an initial speed of vi = 4.00 m/s up an incline of θ = 17°. The crate then slides along the incline, reaches a spring of spring constant k = 92 N/m , and compresses the spring by Δs = 15.0 cm before stopping. a) what is the distance d, in meters, along the incline that the crate slides, assuming there is no friction? b)What distance ds, in meters, along the incline had the crate moved when it just touched the spring? c)If there were friction between the crate and incline, what coefficient of kinetic friction would stop the crate after it travels ds (just before it compresses the spring)?
5. Moumita is holding a mass m=0.50kg, which is connected to the bottom of a vertical spring with spring constant k=10.0ON/m. She is holding the mass in place at a height h=1.5m above the floor. The spring is relaxed in this condition. When Moumita lets go of the mass, how far will the mass fall before it turns around and starts to travel upwards?
A 6.50 ✕ 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.400 m by a large spring bumper at the end of its track. What is the force constant k of the spring (in N/m)? (Enter a number.)
9. A 35.0-kg block slides down a surface with a coefficient of friction of 0.250. It is released from rest at the top of an incline (38.0° to the horizontal) at a height 10.0 meters. What is its speed at the bottom of the incline? 10=
How far the block will compress the spring after fall back from its maximum height?