Use the concepts of impulse and momentum

Reference no: EM137887

Q1. A child is sliding on a sled at 1.6 {rm m/s} to the right. You stop the sled by pushing on it for 0.80 {rm s} in a direction opposite to its motion. If the mass of the child and sled is 41 {rm kg}, what average force do you need to apply to stop the sled? Use the concepts of impulse and momentum.

Q2. A rifle with a barrel length of 56 fires an 8 bullet with a horizontal speed of 350. The bullet strikes a block of wood and penetrates to a depth of 14. (a) What resistive force (assumed to be constant) does the wood exert on the bullet? (b) How long does it take bullet to come to rest after entering the wood?

Reference no: EM137887

Questions Cloud

Methodological and measurement problems : Discuss some of the methodological and measurement problems one might encounter in using time-series data to estimate the parameters of this model.

What is the radius of the loop, in meters : He is sitting on a set of bathroom scales. He notes that scales show four times his normal weight. What is the radius of the loop, in meters.

Percentage increase in production : In what industry will a given percentage increase in production workers result in the largest percentage increase in output.

Find out the resolution limit set by diffraction : A screen is placed 51.0 cm from a single slit that is illuminated with light of wavelength 677 nm. If the distance between the first and third minima in the diffraction pattern is 2.80 mm, what is the width of slit.

Use the concepts of impulse and momentum : A rifle with a barrel length of 56 fires an 8 bullet with a horizontal speed of 350. The bullet strikes a block of wood and penetrates to a depth of 14. (a) What resistive force (assumed to be constant) does the wood exert on the bullet? (b) How long..

Utilizing the standard is-lm model : Utilizing the standard IS/LM model, elucidate how the scope of monetary policy to change real economic activity in the short run depends on the private sector reaction to interest rate changes.

What is the amplitude of the oscillations : A converging lens has a focal length of f = 26 cm. An object is placed 39 cm from the lens. Find out the size of an image in cm if the object has a height of 5 cm. express answer with one decimal place.

Find out the magnitude of each current : While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest.

What speed does the arrow leave the bow : An archer puts a 0.26 kg arrow to the bowstring. An average force of 213 N is exerted to draw the string back 1.3 m. unless otherwise directed, suppose that air resistance is negligible. Illustrate energy bar graphs to solve the problem.

User Account

All Pages