A 3 kg object is moving along the +y+y direction with a
speed of 4 m/s...
A 3 kg object is moving along the +y+y direction with a
speed of 4 m/s when it experiences an impulse of
5i^−8j^5i^−8j^ Ns. What is the object's speed
after the impulse is applied?
A 15.0 kg object moving in the +x direction at 5.5 m/s collides
head-on with a 11.5 kg object moving in the −x direction at 4.0 m/s
.
Part A-
Find the final velocity of each mass if the objects stick
together.
Express your answers using two significant figures. Enter your
answers numerically separated by a comma.
Part B-
Find the final velocity of each mass if the collision is
elastic.
Express your answers using two significant figures. Enter your...
an object is moving along a circle of radius 400.0m
with a speed of 20.0m/s. the centripetal force acting on the object
is 500.0N
a) find the mass of the object
b) find the work done by the centripetal force
c) what is the angular velocity of the object
An object with mass m1= 3.00 kg is moving along the positive
x-axis with a speed v1i=2 m/s straight towards two objects
with masses m2= 2.00 kg and m3= 4.00 kg, which are initially at
rest. When they collide, object 1 comes to rest and object 2 moves
away with a speed of v2f=1.5 m/s at an angle of 50o from
the incoming path of object 1. For everything that follows, use a
coordinate system where the final path of...
A ball of mass 0.576 kg moving east (+x+x direction) with a
speed of 3.78 m/sm/s collides head-on with a 0.288 kg ball at rest.
Assume that the collision is perfectly elastic
What is be the speed of the 0.576-kg ball after the
collision?
What is be the direction of the velocity of the 0.576-kg ball
after the collision?
What is the speed of the 0.288-kg ball after the collision?
What is the direction of the velocity of 0.288-kg ball...
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...
4) Mass 1 is initially moving at 3 m/s in the +x direction and
it collides perfectly elastically with mass 2 moving at 10 m/s in
the -x direction. After the collision, mass 1 is moving at 5 m/s in
the +x direction. What is the final velocity of mass 2 in m/s? If
in the negative x direction, include a negative sign. (Note: the
masses are not needed to answer this question.)
A 3-Kg toy car travelling initially with a speed of 20.0
m/s in the east direction crashes into a 5.0 kg toy truck moving in
the west direction 30.0m/s The velocity of the car right after the
collision is 15.0m/s to the west. What is the velocity of the truck
right after the collision.
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 trooper is moving due south along the freeway at a speed of 33
m/s. At time t = 0, a red car passes the trooper. The red car moves
with constant velocity of 45 m/s southward. At the instant the
trooper's car is passed, the trooper begins to speed up at a
constant rate of 1.5 m/s2. What is the maximum distance ahead of
the trooper that is reached by the red car? m