A man  who  is  on  top  of  a roof  of  a  high  building  drops  a  piece  of  metallic material.  A  second  piece of metallic material is  dropped    3.0   seconds  later.  How  far   apart  (km) are  the  materials  when  the  second  material  has  reached  a  speed  of  15.0  m/s

Q: A billiard ball (1kg) and a big piece of chewing gum (0.2kg) are moving at each other. The billiard…

A:

Q: A uranium nucleus (mass 238 units) at rest decays into helium nucleus (mass 4.0 units) and thorium…

A: Given Uranium nucleus mass                     = 238 units Helium nucleus mass m1              =  4…

Q: A grenade of mass: 25 kg and speed 2 m/s explodes into two identical fragments. If the grenade was…

A:

Q: Two blocks of placed on a ho light spring is the blocks are between them. is burned, afte: moves to…

A: Solutuon: Given that  m1= 8 kg m2= 8.9 kg V2 = 29 m/s

Q: A 180-g billiard ball is shot toward an identical ball at velocity vi = 7.60 m/s. The identical ball…

A: A 180-g billiard ball is shot toward an identical ball at velocity vi = 7.60 m/s. The identical ball…

Q: A hockey puck is hit by a stick and slides off at an initial speed of 0.5 m/s. Assuming that the ice…

A:

Q: An astronaut of mass 180 kg including his suit and jet pack wants to acquire a velocity of 1.8 m/s…

A: Mass, M = 180 kgSpeed of jetpack, V= 1.8 m/sSpeed of gas, v = 61 m/sMass of gas, m = ?

Q: An initially stationary box on a frictionless floor explodes into two pieces: piece A with mass ma…

A: Given: An Initially stationary box on a frictionless floor explodes into two pleces: piece A with…

Q: In the arrangement of the figure, billiard ball 1 moving at a speed of 4.2 m/s undergoes a glancing…

A:

Q: A professional baseball pitcher throws a 100 g ball at 45 m/s. What is the momentum of the ball?

A:

Q: Ernest Goes Fishing.  After putting his fishing gear in the canoe he walks back to his car to lock…

A: Concept Given data

Q: s Type A nerve fibers in humans can conduct nerve impulses at speeds up to 140 m>s. (a) How fast…

A: The speed in miles/hr is

Q: After striking the ground, the body of the guitar snaps cleanly off the neck, rebounding upwards…

A: This problem can be solved using equation of motion assuming constant acceleration.

Q: A block of mass m₁ = 6 kg moving with a speed of ₁ = 22m/s collides with a second block of mass m₂…

A:

Q: 0780938042 حمد العزام Ex : Two billiard balls are travelling to the right with speeds (v1 = 0.5 m/s)…

A: According to the principle of conservation of momentum, the total momentum of the system must be…

Q: Two spacecraft A and B are traveling directly towards each other, intending to meet to dock…

A:

Q: A 128 kg astronaut and his equipment are initially at rest. To move forward with a velocity of 2.34…

A: Given data:  Mass (m) = 128 kg Initial velocity (u) = 0 m/s Final velocity (v) = 2.34 m/s Force (F)…

Q: Airplane flight recorders must be able to survive catastrophic crashes. Therefore, they are…

A: Mass of box (m) = 43 kg Initial velocity (u) = 340 msFinal velocity (v) = 0 mstime (t) = 6.6 ms =…

Q: -speed winds around a tornado can drive projectiles into trees, building walls, and even metal…

A:

Q: For a system of three particles moving along a line, an observer in a laboratory measures the…

A: The objective of the question is to find the velocity of the center of mass (CM) of a system of…

Q: A 50-kg girl is standing on a 139-kg plank. The plank, originally at rest, is free to slide on a…

A: The expression for velocity is Use the conservation of momentum to the girl-plank system,

Q: You hold two sheets of identical blue paper over your head at the same height. You drop both sheets…

A: 1) In the 1st trial both the sheets of paper must fall at the same time 2) In the 2nd trial the ball…

Q: The following equation describes the motion of a rocket that is expelling a total mass M of fuel at…

A: In case of variable mass system v=dxdtis used to calculate velocity

Q: The particle starts from rest at t = 0. What is the magnitude p of the momentum of the particle at…

A: Part(a)          The particle starts from rest at t = 0. What is the magnitude p of the momentum of…

Q: A 1-kg mass C and a 2-kg mass E are pushed together against a spring and tied with a cord.When the…

A:

Q: A car of mass 1000.0 kg moving at 20.0 m/s collides with a 5000.0 kg truck at the initial velocity…

A: Given, mass of the car, m = 1000.0 kg velocity of the car before collision, u1 = 20.0 m/s mass of…

Q: The figure shows a glancing (not head-on) collision between two billiard balls (viewed from above).…

A:

Q: Judy has a mass of 72.0kg and stands on slippery ice. She catches her leaping dog (mass 15.0kg),…

A: the speed of Judy and her dog after she catches him = ?

Q: Archerfish are one of the few fish that prey on land insects and other small animals. They do this…

A:

Q: In the arrangement of the figure, billiard ball 1 moving at a speed of 3.09 m/s undergoes a glancing…

A:

Q: A 100-g bat collides with a stationary 1.2 kg teddy bear. Immediately after the collision, the bat…

A:

Q: Human reaction time is usually about 0.20 s. If your lab partner holds a ruler between your finger…

A:

Q: An object of mass m = 3.0 kg is released from rest at the top of the incline plane below. What is…

A:

Q: A 0.50 kg ball is thrown up into the air with an initial speed of 9.0 m/s.  What is the maximum…

A:

Q: For a system of three particles moving along a line, an observer in a laboratory measures the…

A: Write the values of all masses with corresponding velocities.   m1=3.40 kg, v1=265 m/sm2=5 kg,…

Q: Bob and Tom take a sled weighing 10 N to a frozen pond. The sled is initially at rest on the ice.…

A: Conservation of momentum for two objects colliding in an isolated system states that the total…

Q: JD is playing with some clay (mass = 18-g).  He flings it across the room, where it lodges on the…

A:

Q: Two bumper cars at the county fair are sliding toward one another (see figure below). Initially,…

A:

Q: Two identical freight cars roll without friction towards each other, in opposite directions, on a…

A: According to conservation of momentum -  Initial momentum = Final momentum  Expression for momentum…

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –