1km=1000m=1000000mm
118km/h=118000000 mm/h
Answer:
10 kg
Explanation:
The mass of an object does not change even if the amount of gravtiy changes.
Answer:
Explanation:
Given
mass of couch
acceleration of couch
inclination
Let coefficient of kinetic Friction
as couch begins to slides Forces act on couch
, where is friction force
therefore net acceleration is
If force is applied at 30 degree with the horizontal
then first we will find the components of force in two directions
now we can find normal force by balancing the forces in Y direction
now since block is moving with constant speed
so here forces along horizontal plane will be balanced also
Now the weight of the box is defined as
now plug in all values
We use mass, volume and density relation as,
Here, m is mass , V is volume and is density.
Also,
Here, and t is thickness.
Given , and.
Therefore, from above formula
.
Thus, diameter of the plate,