## Physics Resources

physic 20

physic 20

A typical flying insect applies an average force equal to twice its weight during each downward stroke while hovering. Take the mass of the insect to be 10g, and assume the wings move an average downward...

Two airplanes leave an airport at the same time. The velocity of the first airplane is 720 m/h at a heading of 45.5 ◦ . The velocity of the second is 610 m/h at a heading of 153◦...

To win the game, a place kicker must kick a football from a point 28 m (30.6208 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves...

Two airplanes leave an airport at the same time. The velocity of the first airplane is 700 m/h at a heading of 11.6 ◦ . The velocity of the second is 560 m/h at a heading of 127◦...

Cliff divers at Acapulco jump into the sea from a cliff 36 m high. At the level of the sea, a rock sticks out a horizontal distance of 10.4 m. The acceleration of gravity is 9.8 m/s 2...

A ball is thrown horizontally from the top of a building 100 m high. The ball strikes the ground 54 m horizontally from the point of release. What is the speed of the ball just before...

A runner moves with a velocity of 3m/s due east for 60 seconds. the runner then comes to rest for 30 second, then turns around and heads due west with a velocity of 4m/s for 60 seconds.