Continuation of Physics Problem Set
Physics Problem 4. If a flea can jump straight up to a height of 0.425 m, what is its initial speed as it leaves the ground? b) For how much time is it in the air?
Physics Problem 5. A player kicks a ball with a velocity of 40 m/s, 35ยบ from the horizontal. Find:
a.the maximum height the ball could reach.
b.the time to reach the maximum height.
c.the time the ball is in the air.
d.the range.
Physics Problem 6. A crate with a mass 32.5 kg initially at rest on a warehouse floor is acted on by a net force of 140N. a) What acceleration is produced? B) How far does the crate travel in 10.0 s? c) What is its speed at the end of 10.0s?
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Monday, November 9, 2009
Saturday, October 31, 2009
Physics Class Questions: Physics Mechanics
Physics Questions:
1. Physics Problem 1: A horse moving with constant acceleration covers the distance between two points 90.0 m apart in 6.00s. Its speed as it passes the second point is 20.0 m/s. a) What is its speed at the first point? b) What is the acceleration?
2. Physics Problem 2: The catapult of an aircraft carrier accelerates a jet fighter from rest to a take-off speed of 190 mi/h in a distance of 319 ft. Assume constant acceleration. a) Calculate the acceleration of the fighter in m/s2. b) Calculate the time required for the fighter to be accelerated to take-off speed.
3. Physics Problem 3: An airplane travels 380m down the runway before taking off. If it starts from rest, moves with constant acceleration, and becomes airborne in 7.95 s, what is its speed in m/s, when takes off?
My Physics Class
1. Physics Problem 1: A horse moving with constant acceleration covers the distance between two points 90.0 m apart in 6.00s. Its speed as it passes the second point is 20.0 m/s. a) What is its speed at the first point? b) What is the acceleration?
2. Physics Problem 2: The catapult of an aircraft carrier accelerates a jet fighter from rest to a take-off speed of 190 mi/h in a distance of 319 ft. Assume constant acceleration. a) Calculate the acceleration of the fighter in m/s2. b) Calculate the time required for the fighter to be accelerated to take-off speed.
3. Physics Problem 3: An airplane travels 380m down the runway before taking off. If it starts from rest, moves with constant acceleration, and becomes airborne in 7.95 s, what is its speed in m/s, when takes off?
My Physics Class
Tuesday, October 20, 2009
Physics: Second Grading Examination
Review for Physics Exam
Scientist
Circuit
Ohm's Law
Power
Electric Meter
Energy Conversion
Magnetism
Enjoy Physics!
Scientist
Circuit
Ohm's Law
Power
Electric Meter
Energy Conversion
Magnetism
Enjoy Physics!
Wednesday, October 7, 2009
Physics Update: Nobel Prize Winner in Physics
Physics Nobel Prize winners are. Charles Kao, Willard Boyle and George Smith. Congratulations to these physics wizards.
Friday, September 18, 2009
Monday, August 10, 2009
Saturday, August 8, 2009
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