Calculate the acceleration of the counterweight

Assignment Help Physics

Reference no: EM138015

Q1. A rifle fires a 2.39 10-2-kg pellet straight upward, since the pellet rests on a compressed spring that is released when the trigger is pulled. The spring has a negligible mass and is compressed by 9.17 10-2 m from its unstrained length. The pellet rises to a maximum height of 6.12 m above its position on the compressed spring.

Ignoring air resistance, find out the spring constant.

Q2. A 4.00 kg counterweight is attached to a light cord, which is wound around a spool. The spool is a uniform solid cylinder of radius 8.00 cm and mass 2.00 kg.

(a) What is net torque on the system about the point O?

(b) When counterweight has a speed v, the pulley has an angular speed w= v/R. Determine the total angular momentum of the system about O.

Reference no: EM138015

Questions Cloud

Evaluate the t statistic for testing contrast : The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast

What is the sign of the charge on the wire : How many 95W light bulbs can you use in a 120V circuit without tripping a 17A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each light bulb is V.)

How to keep the pole motionless in a horizontal position : You're carrying a 3.6-m-long, 25kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35cm from its tip.

Correct conclusions from this procedure : Multiple comparison procedures are going to be done using the Bonferroni method with α = 0.10. The value of t** is 2.2426. The smallest minimum significant difference (MSD) for finding a difference between groups is computed as 17.68. The correct ..

Calculate the acceleration of the counterweight : A rifle fires a 2.39 10-2-kg pellet straight upward, since the pellet rests on a compressed spring that is released when the trigger is pulled. The spring has a negligible mass and is compressed by 9.17 10-2 m from its unstrained length. The pellet r..

The right of support is the plank''s center of gravity : A father (m = 90 kg) and son (m = 45 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3 m/s after they have separated. How fast is the father moving.

Partial anova table : Assume the data for the three groups are independent and the data are approximately Normal. The P-value is less than 0.01. The correct conclusion is that

What is the current flowing in the primary : A step-up transformer has 300 turns on its primary coil and 90000 turns on its secondary coil if the current flowing through the secondary is 5 amps what is the current flowing in the primary.

What is the radius of resulting circular path : Bob, of mass m, drops from a tree limb at the same time that Esther, also of mass m, begins her descent down a frictionless slide. If they both start at the same height above the ground, which is true about their kinetic energies as they reach the gr..

User Account

All Pages