Examlex
Object A strikes the stationary object B head-on in an elastic collision.The mass of A is fixed, you may choose the mass of B appropriately.Then:
Q5: A projectile is shot vertically upward with
Q41: A loaded ship passes from a lake
Q51: If the length of a simple pendulum
Q51: The velocity of a particle moving along
Q61: A 24-N horizontal force is applied
Q66: A projectile in flight explodes into several
Q68: Both the x and y coordinates of
Q69: In uniform circular motion,<br>A)the acceleration always points
Q72: An airtight box, having a lid of
Q86: A constriction in a pipe reduces its