3. Look at the image below. What you see is bullet of mass 0.030 kg moving horizontally straight towards a block of wood of mass 1.9 kg that is suspended as a pendulum. The bullet gets inside the woodblock, and together they swing upward a vertical distance of 0.80 m. The length of the string is 3.0 m. A) What was the speed of the bullet just before it struck the wooden block? B) What is the speed of the system after the bullet collided into it?

3. Look at the image below. What you see is bullet of mass 0.030 kg moving horizontally straight towards a block of wood of mass 1.9 kg that is suspended as a pendulum. The bullet gets inside the woodblock, and together they swing upward a vertical distance of 0.80 m. The length of the string is 3.0 m. A) What was the speed of the bullet just before it struck the wooden block? B) What is the speed of the system after the bullet collided into it?

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter3: Energy And Conservation Laws

Section: Chapter Questions

Problem 2C: A bullet with a mass of 0.01 kg is tired horizontally into a block of wood hanging on a string. The...

See similar textbooks

Similar questions

A bullet with a mass of 0.01 kg is tired horizontally into a block of wood hanging on a string. The bullet sticks in the wood and causes it to swing upward to a height of 0.1 m. If the mass of the wood block is 2 kg, what was the initial speed of the bullet?
An object that has a small mass and an object that has a large mass have the same momentum. Which object has the largest kinetic energy?
A pitcher claims he can throw a 0.145-kg baseball with as much momentum as a 3.00-kg bullet moving with a speed of 1.50 103 m/s (a) What must the baseballs speed be if the pitchers claim is valid? (b) Which has greater kinetic energy, the ball or the bullet?
A basketball is tossed up into the air, falls freely, and bounces from the wooden floor. From the moment after the player releases it until the ball reaches the top of its bounce, what is the smallest system for which momentum is conserved? (a) the ball (b) the ball plus player (c) the ball plus floor (d) the ball plus the Earth (e) momentum is not conserved for any system
How much fuel would be needed for a 1000-kg rocket (this is its mass with no fuel) to take off from Earth and reach 1000 m/s in 30 s? The exhaust speed is 1000 m/s.
Each Voyager spacecraft was accelerated toward escape speed from the Sun by the gravitational force exerted by Jupiter on the spacecraft. (a) Is the gravitational force a conservative or a nonconservative force? (b) Does the interaction of the spacecraft with Jupiter meet the definition of an elastic collision? (c) How could the space-craft be moving faster after the collision?
Solve using in lb*ft/s. 2100kg truck traveling north at 41km/h turns east and accelerates to 51km/h. What are the magnitude and direction of the change in its momentum?
A 128 kg astronaut and his equipment are initially at rest. To move forward with a velocity of 2.34 m/s, the astronaut fires a 532 N rocket in the backward direction. How long does the astronaut need to fire the rocket?
4. Car A (m = 1.3 metric ton), with a speed of 300 m/s, collides with car B (m = 1.7 metricton), which is travelling at a speed of 200 m/s. If both cars were travelling at the samedirection before impact, answer the following questions. Note that e = 0.43.a. What is the velocity (m/s) of A after the collision?b. What is the velocity of B after the collision?c. How much kinetic energy is lost upon impact?d. Several seconds before their collision, the two cars are 15 m away from each other.How far is the system’s center of mass relative to object A?
1. An apple that weighs 2.7 N falls vertically downward from rest for 1.4 s. (a) What is the change in the apple’s momentum per second? (b) What is the total change in its momentum during the 1.4-second fall?Explain and lable the problem.
1. What is the momentum of a 1.4x104 kg autombile traveling at 20m/s to the right of its origin? Kindly show the solution. 2. How long must a 2200 N force act on a van to give it a momentum of 56 000 kg.m/s starting from rest?
A 3.5 kg rifle fires an 11 g bullet with a velocity of 575 m/s. (a) What is the recoil velocity of the rifle? (b) If the shooter holds the rifle firmly against his shoulder, what will be the recoil velocity? Assume the mass of the shooter is 45.0 kg. Perform the GRESA in solving.