A camera is accidentally knocked off an edge of a cliff 400 ft high. The camera falls a distance of `s=16t^(2)` in t seconds.
What is the average velocity with which the camera falls during the last 2 seconds?

A camera is accidentally knocked off an edge of a cliff 400 ft high. The camera falls a distance of s=16t^(2) in t seconds. What is the instantaneous velocity of the camera when it hits the ground?

A camera is accidentally knocked off an edge of a cliff 400 ft high. The camera falls a distance of s = 16t^(2) in t seconds. What is the instantaneous velocity of the camera when it hits the ground?

A camera is accidentally knocked off an edge of a cliff 400 ft high. The camera falls a distance of s=16t^(2) in t seconds. How long does the camera fall before it hits the ground?

A camera is accidentally knocked off an edge of a cliff 400 ft high. The camera falls a distance of s = 16t^(2) in t seconds. How long does the camera fall before it hits the ground?

A lamp is 50ftdot above the ground. A ball is dropped from the same height from a point 30ftdot away from the light pole. If ball falls a distance s=16 t^2ftdot in t second, then how fast is the shadow of the ball moving along the ground 1/2s later?

A lamp is 50ftdot above the ground. A ball is dropped from the same height from a point 30ftdot away from the light pole. If ball falls a distance s=16 t^2ftdot in t second, then how fast is the shadow of the ball moving along the ground 1/2s later?

A point moves along a stright line in such a way that after t seconds its distance from the origin is s=2t^(2)+3t meters. Find the average velocity of the points between t = 3 and t = 6 seconds.

In a Millikan-type oil-drop experiment, the plates are 8 mm apart. An oil drop is found to remain at rest when the upper plate is at a potential 136 V higher than that of the lower one. When the electric field is switched off, the drop is found to fall a distance of 2.0 mm in 36 seconds with a uniform speed. Find (a) the charge on the drop and (b) the number of electrons attached to this drop. Density of oil = 880 kg m^(-3) and coefficient of viscosity of air = 180 mupoise .