Answer: The block of 0.4 Kg travel the same distance that the block of
0.2 Kg
Explanation: Considering the second newton law, we have the following
F= m*a
F= P*sin (θ) where θ is the angle for the incline
so mg sin (θ)= m*a
a=g sin(θ)
both block have the same acceleration in the inclined plane so travel the same distance independent of its mass.
A. Air, desk, water. sound travels the slowest through air and the fastest through liquids. solids are somewhere in the middle.
The x and y-components of the vector R is 44.15i + 23.47j.
The given parameters:
- Magnitude of vector R = 50 m
- Position of vector R = 28 degrees
<h3>What is component vectors?</h3>
- This is the representation of vectors in x and y-coordinates.
The x and y-components of the vector R is calculated as follows;
R is a unit vector.
The plot of vector R is in the image uploaded.
Learn more about component vectors here: brainly.com/question/13416288
Dark matter may explain <span>unexpected orbital velocities of stars in galaxies.</span>
PART a)
Momentum is defined as product of mass and velocity
so here initial momentum is
given that
m = 0.3 kg
v = 18 m/s
towards East
Part b)
Since puck was initially at rest so here initial momentum must be ZERO
so here to find the force we can use
so here we have
time interval = 0.25 s
now from above equation
Part c)
Due to friction the puck lose its speed by 5 m/s
final speed = 18 - 5 = 13 m/s
mass = 0.3 kg
final momentum = (0.3)(13) = 3.9 kg m/s
now the impulse due to friction force is given as
Part d)
initial momentum of block will be ZERO as it is placed at rest
Initial momentum of the puck is given as
so total momentum before collision is given as
Part e)
since the system is isolated and there is no external force on it
So here momentum will remain conserved
so here we have
so final combined speed will be 2.6 m/s