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CONTENTS
Two and three dimensional motion
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One dimensional motion There are four variables which put together in an equation can describe this motion. These are Initial Velocity (u); Final Velocity (v), Acceleration (a), Distance Traveled (s) and Time elapsed (t). The equations which tell us the relationship between these variables are as given below. v = u + at v2 = u2 + 2as s = ut + 1/2 at2 average velocity = (v + u)/2 Armed with these equations you can
do wonderful things like calculating a cars acceleration from zero to
whatever in 60 seconds !! Test your self Q Two boys are standing on the top of a wall which is 400 m from the ground. The first boy drops a tennis ball over the side of the wall. Two seconds later, his friend throws another ball vertically downward. Calculate the required initial velocity of the second ball in order for it to hit the ground at the same time as the first ball. Ans: 22.32 m/s [ Go to Solution: click here ] TWO AND THREE DIMENSIONAL MOTION Scalar or Vector? DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION
Vector Addition DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION
Resolution of a Vector Rectangular
Components of a Vector
Test your self Q Vector A has a magnitude of 25 units and vector B has a magnitude of 15 units. What is the minimum and maximum magnitude of a vector A + B? Ans: 40 units, 10 units [ Go to Solution: click here ] LAWS OF MOTION DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION
Test your self Q. A120 lb person is being lifted aloft by a rocket which accelerates uniformly to an upward speed of 300 ft/sec in 2 sec. a) What is the upward acceleration in multiples of g? b) What is the apparent weight of the person during acceleration? Ans: a) 4.7g b)684 lbf [Got to solution: click here] WORK ENERGY POWER DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION Test your self Q. A 2.0 kg block is thrown upward from a point 20m above Earth's surface. At what height above Earth's surface will the gravitational potential energy of the Earth block system have increased by 500J? Ans: 45.51m [ Go to solution: click here ] CIRCULAR MOTION
DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION Test your self Q. A constant torque of 1.56 N-m is applied to a rotating solid disk of radius 15 cm and mass 5.71 kg. What is the angular velocity of the disk after 10 seconds? Ans: 242.8 rad/s [ Go to solution: click here ] GRAVITATION Kepler's Laws DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION Test your self Q. A sphere shell has inner radius R, outer radius R, and mass M, distributed uniformly throughout the shell. Find the magnitude of the gravitational force exerted on the shell by a point particle of mass m located at a distance d from the center, outside the inner radius and inside the outer radius. Ans: F = [Gm(d3 - R13)M] / [d2(R23 - R13)] [ Go to solution: click here ] DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION
DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION Specific Heat Test your self Q. A volume of 8 liters of gas has a pressure of 50 kPa and a temp of 27oC. a) If the pressure were increased to 300 kPa without changing he temperature what would be the resulting volume? b) If the temperature was raised to 627o C while maintaining the original pressure, what would be the final volume? Ans: a) 1.33 liters b) 24 liters [ Go to solution: click here ] ELECTRICITY Electricity Resistance of Resistors in Series DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION Resistance of Resistors in Parallel DOWNLOAD eBOOK ON PHYSICS FORMULAS FOR JUST $1 AND GET THIS EXPLANATION
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