Si se desea poner en movimiento un bloque de cobre de 10kg de masa sobre una superficie horizontal de acero, entonces: A.¿Cuál debe ser la fuerza necesaria para ponerlo en movimiento?

B.¿Cuál es la fuerza de rozamiento que experimenta el bloque una vez que se encuentra en movimiento?
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Luke and carrie are driving down a straight section of the interstate at 70 mph in luke's new convertible. carrie is drinking a soda in the passenger seat. when she is done she tosses the bottle straight up in the air, just above the height of the car. what will happen to the bottle if air resistance is neglected? a. the bottle will land in carrie's lap. b. not enough information is given. c. the bottle will land on the interstate in front of the car. d. the bottle will land on the interstate behind the car.

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

Often called simply "velocity," this is the velocity of an object at a particular moment in time.