Calculate the average frictional force that stops the bullet

Reference no: EM13314337

A 7.80-g bullet moving at 640 m/s penetrates a tree trunk to a depth of 6.1 cm.

(a) Use work and energy considerations to find the average frictional force that stops the bullet.

(b) Assuming the friction force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving.

Reference no: EM13314337

Questions Cloud

What maximum force can this person apply with the jack : A person of mass 80kg places all their weight on the pedal of a foot operated hydraulic jack. The diameter of the hydraulic cylinder under foot pedal is 4cm and the diameter of the jack cyclinder is 9cm (Assume g is 9.81 m/s^2)

Find what is the expected compression of the 4 springs : The undercarriage for an aircraft uses two springs between each wheel and the aircraft fueselage to cuhion the landing of the aircraft. There are two sprung wheels and the mass of the aircraft is 5000kg

What is the rate of fuel used by the engine in the test : A container of petrol on a set of scales is used to measure the rate at which fuel is used by an engine under test. In one test the weight measured by the scales decreases by 25.0 N in 1 hour.

Find out the uncertainity in its position : A baseball is 150g and thrown at 100miles/hour with the same uncertainity. Determine the uncertainity in its position. The uncertainity was set at 1% in the previous problem not sure if it matters pertain to this problem.

Calculate the average frictional force that stops the bullet : A 7.80-g bullet moving at 640 m/s penetrates a tree trunk to a depth of 6.1 cm. find the average frictional force that stops the bullet

Explain beef tastes salty at about 1/5 inch from the surface : You plan to marinate a piece of beef for your dinner. The beef is 5 by 6 inches with the thickness of 1 inch. You rub salt and pepper all around it, and set it aside for 30 minutes. Then you checked it after 30 minutes and found that the beef tast..

Find power rating of electric heater required to maintain : A room 7m x 6m x 3m high is to be electically heated to maintain the inside temperature at 20 C, when it is 0 C outside. The room has 2 windows each 1.2m x 1.8m and a sliding glass door 2.4m x 2.1m.

How big is the mac address space : How big is the MAC address space? The IPv4 address space? The IPv6 address space?

Calculate the maximum speed of the object : A mass-spring system oscillates with an amplitude of 4.40 cm. If the spring constant is 237 N/m and the mass is 411 g, Determine the maximum speed of the object

User Account

All Pages