1.Two balls of mass 5 kg each moving in opposite directions with
equal speed say 10...
1.Two balls of mass 5 kg each moving in opposite directions with
equal speed say 10 m/s collide head on with each other. Predict the
outcome of the collision assuming it to be
Two automobiles, each of mass 500 kg, are moving at
the same speed, 10 m/s, when they collide and stick together. In
what direction and at what speed does the wreckage move (a) if one
car was driving north and one south; (b) if one car was driving
north and one east
thank you!!!
Two particles approach each
other with equal and opposite speed v. The mass of one particle is
m, and the mass of the other particle is nm, where n is just a
unitless number. Snapshots of the system before, during, and after
the elastic collision are shown above. After the collision the
first particle moves in the exact opposite direction with speed
2.40v, and the speed of the second particle is unknown. What is the
value of n?
Two projectiles with 50kg mass each are launched in opposite
directions towards each other, both at an angle of 30 degrees off
the horizontal. They both have the same initial velocity of 75m/s
and they are separated by a distance of 200m.
a.) What is their combined initial kinetic energy?
b.) Right before they collide, how high off the ground are
they?
c.) What is their total momentum here? (both directions)
d.) When they collide they stick together and lost...
1. A toy car of mass 2.0 kg moving to the right with a speed of
8.0 m/s collides perfectly inelastically with another toy car of
mass 3.0 kg that is moving to the left with a speed of 2.0 m/s.
Find the magnitude and the direction of the velocity of the system
Immediately after the collision.
2. In an elastic collision of two objects,
a. momentum is not conserved.
b. momentum is conserved, and the kinetic energy after the...
A ball, mass m1 = 0.1 kg, is moving upwards with a speed of 10
m/s when it collides inelastically with a cup, mass m2 = 0.9 kg,
that is initially at rest. After the collision the system
(ball+cup) moves straight upwards without rotating. This collision
occurs on Earth, and the local gravitational field points down with
g = 9.8 m/s2 .
(a) What is the momentum of the system before the collision?
Write your final answers and neatly show...
8) 3 kg mass moving with 10 m/s in the x-direction hits a 5 kg
mass at rest. After the collision 3 kg is deflected by 30 degree
while the 5 kg is deflected by 45 degrees. a) Draw a diagram for
the initial and final motion including the directions of the
velocities b) Find the final velocities of each mass c) Determine
if the collision is elastic or not. d) Qualitatively, show the
direction of the impulse (or the...
A softball of mass 0.220 kg that is moving with a speed of 8.0
m/s (in the positive direction) collides head-on and elastically
with another ball initially at rest. Afterward the incoming
softball bounces backward with a speed of 6.4 m/s.
(a) Calculate the velocity of the target ball after the
collision.
(b) Calculate the mass of the target ball
A truck with a mass of 1350 kg and moving with a speed of 12.0
m/s rear-ends a 821-kg car stopped at an intersection. The
collision is approximately elastic since the car is in neutral, the
brakes are off, the metal bumpers line up well and do not get
damaged. Find the speed of both vehicles after the collision.
vcar = ___________________ m/s
vtruck = ____________________ m/s
A car of mass 495 kg is moving 32.0° North of East at a speed of
19.6 m/s. What is the magnitude of the momentum of the car?
(magnitude - how big is it? ignore direction)
Momentum is a vector quantity, and just like any other vector
quantity, we can take components. What is the East-West component
of the momentum of the car?
A truck of mass 2.74×103 kg is moving due East at a
speed of 4.30 m/s. What...
A block of mass m= 5.00-kg is moving to the right with a speed
of v= 2.00 m/son a horizontal,frictionless surface. The block
encounters a relaxed(that is, neither compressed nor
extended)spring with spring constant k= 2,000.00 N/m.
a.What is the kinetic energy of the block before hitting the
spring?
b.What is the kinetic energy of the block when the spring is at
maximum compression?
c.How much energy is stored in the spring at maximum
compression?
d.How far does the spring...