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3 Aug 2018

A spring gun (k = 28 N/m) is used to shoot a 56-g ballhorizontally. Initially
the spring is compressed by 18 cm. The ball loses contact with thespring and leaves the gun when the
spring is still compressed by 12 cm. What is the speed of the ballwhen it hits the ground, 1.4 m
below the spring gun?

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Sixta Kovacek
Sixta KovacekLv2
6 Aug 2018

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

potential energy stored in a compressed spring is 3 J.
the spring constant is k=1500 N/m
(a) calculate the magnitude of the force in this spring
(b) the above spring used to eject a 0.1 kg projectile from aspring gun at rest.
what is the exit speed of the projectile? ignore the mass of thespring of the gun and all forces other than the spring force
(c)if the projectile is ejected from ground level verticallyupward, what is the maximum height will it reach?

a 250 g block is dropped onto a vertical spring with aconstant k= 2.5N/cm. The block becomes attached to the spring, andthe spring compresses 12 cm before momentarily stopping ;while thespring is being compressed"
A) what is the work done by the block's weight?
b) what is the work done by the spring?
c) what is the speed of the block just before it hits thespring?

The spring of a spring gun has force constant k = 400 N/m andnegligible mass. The spring is compressed 6.00cm and a ball withmass 0.0300kg is placed in the horizontal barrel against thecompressed spring. The spring is then released, and the ball ispropelled out the barrel of the gun. The barrel is 6.00cm long, sothe ball leaves the barrel at the same point that it loses contactwith the spring. The gun is held so the barrel is horizontal.
a)Calculate the speed with which the ball leaves the barrel if youcan ignore friction.

b)Calculate the speed of the ball as it leaves the barrel if aconstant resisting force of 6.00N acts on the ball as it movesalong the barrel.

c)For the situation in part B, at what position along the barreldoes the ball have the greatest speed? (In this case, the maximumspeed does not occur at the end of the barrel.)

d)What is that greatest speed?

i think i got all of them except the last one... d)

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