A few numerical problems from laws of motion
A worker pulls a 200. N packing crate with an applied force of 55.0 N. The crate accelerates at a rate of 0.250 m/s(squared). What is the coefficient of kinetic friction between the crate and the...
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CENTRIPETAL FORCE MISCONCEPTION
For a circular motion centripetal force is required. Is there any other force which could replace centripetal force to obtain a circular motion? (Asked Sajin) Answer: Please note that Centripetal Force...
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SHM – Derivation of equation
SHM or Simple Harmonic Motion is the fundamental concept to various complex systems. The following links will give you the opportunity to understand the concept well....
View ArticleMotion under gravity
Two stones of mass 5 kg and 10 kg are dropped from the same height above the ground level. Which one will hit the ground first? Why? Answer: Both the stones will reach the ground simultaneously...
View ArticleAngle between velocity and acceleration
Discuss a circumstance in which angle between velocity and acceleration is less than 90. Discuss a circumstance in which angle between velocity and acceleration lies batween 180 and 90. (Hifsa Zafar...
View ArticleQuestion from Beats (Waves)
Sanjeet asked: "the displacement of a particle in periodic motion is given by "y=(cos2t-2cost+2sin^2t+1). What is the no. of beats that can be heard in 10 seconds?" Related content: Formation of Beats
View ArticleA Problem from Motion
Sandeepan Asked: “Q. Velocity of a moving particle is given by v = t2 – 4. Find out:- (i) Time at which velocity is zero. (ii) Acceleration at which t= 1s (iii) What type of motion uniform or...
View ArticleSequence of Learning Physics
In what sequence should these chapters be prepared for my exams:- units and dimensions,kinematics,laws of motion,work power and energy,motion of system of particles and rigid body dynamics,gravitation....
View ArticleProblem from Kinematics
the distance between Ahmadabad and vadodara is 100 km.two trains set off simultaneously from Ahmadabad towards vadodara each other.the speed of these trains are 45kmh-1 And 30kmh-1.when will they cross...
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Size of body neglected in Circular motion
Why in circular motion the size of the moving body is neglected? Answer: Not only in circular motion, but in entire kinematics we discuss the case of point objects only. In kinematics we study...
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