Question

A block of mass m = 2.10 kg starts from the rest and slides down a 30.0∘ incline which is 3.60 m high. At the bottom, it strikes a block of mass M = 6.50 kg which is at rest on a horizontal surface (Figure 1). (Assume a smooth transition at the bottom of the incline.) The collision is elastic, and friction can be ignored.

a) Determine the speed of the block with mass m = 2.10 kg after the collision.

b)Determine the speed of the block with mass M = 6.50 kg after the collision.

c)Determine what distance along the incline will the smaller mass climb back after the collision.

Answer #1

A block of mass m = 2.10 kg slides down a 30.0∘ incline which is
3.60 m high. At the bottom, it strikes a block of mass M = 8.00 kg
which is at rest on a horizontal surface (Figure 1). (Assume a
smooth transition at the bottom of the incline.) The collision is
elastic, and friction can be ignored. Determine the speed of the
block with mass m = 2.10 kg after the collision. Determine the
speed of the...

A block of mass m = 1.50 kg slides down a 30.0∘ incline
which is 3.60 m high. At the bottom, it strikes a block of mass
M = 6.20 kg which is at rest on a horizontal surface
(Figure 1). (Assume a smooth transition at the bottom of the
incline.) The collision is elastic, and friction can be
ignored.
Part A
Determine the speed of the block with mass m = 1.50 kg
after the collision.
Express your answer...

A 2.70-kg block starts from rest at the top of a 30.0° incline
and slides a distance of 1.90 m down the incline in 1.20 s.
(a) Find the magnitude of the acceleration of the block.
(m/s)^2
(b) Find the coefficient of kinetic friction between block and
plane.
(c) Find the friction force acting on the block.
Magnitude N
Direction
(d) Find the speed of the block after it has slid 1.90 m.
(m/s^2)

1.A small block of mass 3.5 kg starting from rest slides down on
an incline plane of height 2.0 m, 40 degrees with respect to
horizontal (Fig. 2). The coefficient of kinetic friction between
the block and the incline plane is 0.25. At the end of the incline
plane, the block hits the top of a hemispherical mound of ice
(radius 1.0 m) , loses 75% of final kinetic energy (KE=0.5mv*v)
before the collision, then slide down on the surface...

Block A of mass
mA=6kg ,slides down an incline from a height of 10 m
from the ground. Block A then collide with block B, with a mass
mB=8kg which is at rest in the ground. The collision is
elastic. There is no friction between the blocks and the incline
nor between the blocks and the ground.
a) Find the velocity
of A before it collides with B ( 5 points)
b) Find the maximum
height that block A climbs...

A 3000 N block slides down an incline having a slope of 3/4. It
starts from rest and after moving 1.2 m strikes a spring whose
modulus is 1500 N/m. If the coefficient of kinetic friction is
0.20, find the maximum velocity of the block.

Starting from rest, a 4.30-kg block slides 1.80 m down a rough
30.0° incline. The coefficient of kinetic friction between the
block and the incline is ?k = 0.436.
(a) Determine the work done by the force of gravity. J
(b) Determine the work done by the friction force between block
and incline. J
(c) Determine the work done by the normal force. J
(d) Qualitatively, how would the answers change if a shorter
ramp at a steeper angle were...

starting at rest, a mass of 2.50 kg slides down an incline of
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An object of mass m1=0.410kg starts from rest at point A and
slides down an incline surface that makes an angle of 25.0° with
the horizontal. The coefficient of kinetic friction between the
object and the incline surface is 0.395. After sliding down a
distance d=6.50m, it makes a perfectly inelastic collision with an
object of mass m2=0.630kg at point B.
A) Find the speed of m1 at point B just before the collision
B) Find the energy loss during...

A block of mass 13.0 kg slides from rest down a frictionless
39.0° incline and is stopped by a strong spring with
k = 2.70 ✕ 104 N/m. The block slides
3.00 m from the point of release to the point where it comes to
rest against the spring. When the block comes to rest, how far has
the spring been compressed?
m

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