Question

A spring with a spring constant of 5000 N/m is compressed 25 cm by a mass of 2 kg. The mass is released and the spring propels the mass across the floor. After the mass leaves the spring it experiences drag on the floor. The kinetic coefficient of friction between the mass and the floor 0.25.

What is the maximum speed of the cart?

How far does the cart slide before it come to a stop?

Answer #1

frictional work done = frictional force x distance travelled = mg x d

d= distance travelled by cart

A horizontal spring with spring constant 250 N/m is compressed
by 20 cm and then used to launch a 250 g box across the floor. The
coefficient of kinetic friction between the box and the floor is
0.23.
What is the box's launch speed?

A block of mass 0.25 kg is against a spring compressed at 0.20 m
with spring constant 50 N/m. When the spring is released, the block
moves along the frictionless surface until entering a region with
the coefficient of kinetic friction equal to 0.30 (when the block
enters the friction region it is no longer in contact with the
spring ). How far,L,into the region with friction does the block
slide before stopping?

A vertical elastic spring with a spring constant of 619 N/m is
compressed 25 cm. A ball of mass 320 grams is placed at rest on top
of the compressed spring. Take that the height of the ball at this
position is zero. The spring is then released so the ball is shot
straight up.
a)Find the total initial energy of the system
consisting of the ball and the spring.
b)Find the total potential (i.e before the ball
is shot)...

A horizontal spring with spring constant 150 N/m is compressed
17 cm and used to launch a 2.9 kg box across a frictionless,
horizontal surface. After the box travels some distance, the
surface becomes rough. The coefficient of kinetic friction of the
box on the surface is 0.15.
Use work and energy to find how far the box slides across the
rough surface before stopping.
Express your answer to two significant figures and include the
appropriate units.

A block with a mass m = 2.12 kg is pushed into an ideal spring
whose spring constant is k = 3810 N/m. The spring is compressed x =
0.069 m and released. After losing contact with the spring, the
block slides a distance of d = 2.07 m across the floor before
coming to rest.
a) Write an expression for the coefficient of kinetic friction
between the block and the floor using the symbols given in the
problem statement...

A spring with a spring constant of 302 N/m is initially
compressed by a distance of 0.078 m from its equilibrium position.
A mass of 0.038 kg is then held against the compressed spring and
released from rest while upon a horizontal, frictionless surface.
Assuming that the spring then pushes the mass across the surface,
with speed does the mass leave the spring? Assume proper SI
Units.

A 3.00 kg mass is pushed against a spring and released. If the
spring constant of the spring is 7500 N/m and the spring is
compressed 10.0 cm. (a) What is the energy stored in the compressed
spring? (b) What is the maximum speed ?0 of the mass? (c) The mass
then travels across a rough surface and then up a smooth ramp. The
speed at the beginning of the ramp is ?1 = 4.00 m/s. What is the
work...

Box 1 of mass 2 kg is pressed against a spring with spring
constant 600 N/m that is initially compressed by 0.5 m. The spring
launches box 1 which then slides along a frictionless surface until
it collides with box 2 (initially at rest) with mass 3 kg. They
stick together, slide over a patch of sticky spilled soda with
coefficient of kinetic friction 0.6 and length 1.2 m. Then, they
fall off a cliff of height 3 m.
How...

90. The spring of a spring gun has a constant of
500N/m. It is compressed a distance x = 0.05m and a ball of mass
0.10kg is placed in the barrel against the compressed
spring.
Compute the maximum speed with which the ball leaves the gun when
released.( consider Conservation of Energy)

A 0.43 kg object connected to a light spring with a spring
constant of 18.4 N/m oscillates on a frictionless horizontal
surface. The spring is compressed 4.0 cm and released from
rest.
(a) Determine the maximum speed of the mass.
cm/s
(b) Determine the speed of the mass when the spring is
compressed 1.5 cm.
cm/s
(c) Determine the speed of the mass when the spring is stretched
1.5 cm.
cm/s
(d) For what value of x does the speed...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 12 minutes ago

asked 14 minutes ago

asked 18 minutes ago

asked 18 minutes ago

asked 34 minutes ago

asked 43 minutes ago

asked 57 minutes ago

asked 57 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago