johndoe14 said:Homework Statement
A 12g bullet is fired at 1600m/s into a wooden block of a ballistic pendulum, causing it to swing back, raising up 1.40m vertically. Find mass of the block
Homework Equations
N/a
The Attempt at a Solution
bullet momentum= 12g*1600m/s=19.2kgm/s
johndoe14 said:am i correct by saying that the block has a kinetic energy of____ due to the bullet
ke= .5*.012kg*1600m/s^2
= 15360kgm/s^2
The purpose of the Collisions lab-bullet problem is to study the principles of momentum and energy conservation in collisions between objects of different masses. It allows scientists to experimentally verify the laws of physics and understand the behavior of objects during collisions.
The materials needed for the Collisions lab-bullet problem may include a bullet, a ballistic pendulum, a ruler, a protractor, a stopwatch, and a stable surface to conduct the experiment. Other materials such as safety goggles and a lab coat may also be necessary.
The momentum of a bullet can be calculated by multiplying its mass by its velocity. In the Collisions lab-bullet problem, the mass of the bullet can be measured using a balance, and the velocity can be calculated by dividing the distance traveled by the bullet by the time it took to travel that distance.
In elastic collisions, both momentum and kinetic energy are conserved, meaning the total momentum and energy of the system before and after the collision are equal. In inelastic collisions, only momentum is conserved, and some kinetic energy is lost to other forms of energy, such as heat or sound.
Some sources of error in the Collisions lab-bullet problem may include human error in measuring and recording data, friction between the bullet and the ballistic pendulum, and air resistance. Other factors such as the precision of the measuring tools and environmental conditions can also contribute to errors in the experiment.