## Calculate the value of the gravitational force, Mechanical Engineering

Assignment Help:

Problem- Newton's Second Law in 1D

Newton's Second Law of Motion says that the vector sum of the forces acting on an object equals the object's mass times its acceleration.  Mathematically, this is written

F = ma

Or, in component form,

∑Fx = max

∑Fy = may

∑Fz = maz

1D Problems:

a)  You push a 50-kg sled in the snow with a force of 100 N along the x-direction.  What is the sled's acceleration?

b)  A 5-kg rock falls downward with an acceleration of -9.80 m/s2 because of gravity.  Calculate the value of the gravitational force.

c)  Two lions are fighting over a 70-kg gazelle.  The lion on the right pulls to the right with force 400 N and the lion on the left pulls to the left with force 430 N.  What is the acceleration of the gazelle?

#### What is erosion loss, Q. What is Erosion Loss? Additional metal thickne...

Q. What is Erosion Loss? Additional metal thickness must be added in specific locations where metal loss is expected, due to stream flow that is of high velocity, or is abrasiv

#### Dynamics of machine, how does Hartnell governors function?

how does Hartnell governors function?

#### Determine forces in members of cantilever truss, Determine  forces in memb...

Determine  forces in members of cantilever truss: Determine  forces  in  members   B C   and  BD   of   cantilever truss  shown  in  the figure in the figure given below.

#### Deliberately placing column from centre in footing, Describe method of deli...

Describe method of deliberately placing column from centre in footing. The method of deliberately placing a column away from the centre of the footing so that resulting soil pr

#### Fracture mechanics, difference between stress intensity factor and stress c...

difference between stress intensity factor and stress concentration factor

#### Pultrusion, Pultrusion Structure sections of long length are generated...

Pultrusion Structure sections of long length are generated by putting the fibres via resin bath and heated dies of exact shapes. Unidirectional fibres along with high volume f

#### Tensile stress, T ensile Stress: The stress induced in a body, when ...

T ensile Stress: The stress induced in a body, when subjected to two equal and opposite pulls as shown in figure (a) as a result of which there is an increase in length,

#### #strength of materials, Distribution of shearing stresses on l--sections an...

Distribution of shearing stresses on l--sections and miscellaneous sections

#### Determine the fluctuation in rail pressure under one wheel, An inside cylin...

An inside cylinder locomotive has its cylinder centre lines 0.70m apart and has a stroke of 0.60m. Rotating mass per cylinder = 150kg Distance between wheel Centre lines = 1.

#### Illustrate boot-strap air evaporative cooling system, Why is it required of...

Why is it required of cooling the aeroplane ? Illustrate Boot-Strap Air Evaporative cooling system with neat sketch and T-S diagram.