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Problem: Newton's First Law
Newton's First Law of Motion says that, in the absence of external forces, an object at rest stays at rest and an object in motion continues at constant velocity.
a) If no forces act on a stationary object, can it start to move?
b) If no forces act on a moving object, will it slow down?
c) If no forces act on a moving object, can it turn?
d) A spaceship is launched from Earth toward Neptune at a speed of 11.2 km/s. After launch, the spaceship does not fire its engines or encounter any resistance to its motion in space. What is its speed when it reaches Neptune?
A pull up door is stuck in the closed position. A strap, fastened on the inside bottom and located at the center of the door is pulled outward at an angle of 45 deg above horizonta
In a slotted and crank lever quick return motion mechanism, the distance between the fixed centres is 240 mm and the length of the driving crank is 120 mm. Evaluate the inclination
Find out also the loss of energy through impact: Example 1. A bullet weighing 0.1 newton horizontally fired with a velocity of 80 metres/sec hits a wooden block, weighin
If Excessive Pedal Pressure Required Causes of Problem Remedy Incorrect shoe placement Improper anchor pin position l
Compute the velocity of a bar: A bar AB as shown in Figure slides so that its bottom point A has a velocity of 4 m/sec to the left along the horizontal plane. compute the velo
If the allowable shear stress for each of the 10-mm-diameter steel pins at A, B, and C is tallow = 90 MPa, and the allowable normal stress for the 13-mm-diameter rod is sallow = 15
Implementation of Material Requirement Planning: The total requirements for a material from an MRP schedule are given in the following table :
Enthalpy: Sol: The enthalpy is total energy of gaseous system. It takes into consideration, internal energy and pressure, volume effect. Thus, it can be defined as follows:
a) Mention typical application of instrument system with illustratation. b) Write down about the functional element of instrument system with examples. c) Define the key term
Explain End Relief Angle It is the angle between the plane perpendicular to base and end flank. The angle prevent\s the cutting tool from rubbing against the job where as if th
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