The acceleration-time graph of a particle moving along a straight line is as shown. The time at which the particle will have the velocity same as initial velocity (in s) is.

Asmall blob of putty of mass m falls from the ceiling and lands on the outer rim of a turntable of radius r and moment of inertia i0 that is rotating freely with angular speed ω0 about its vertical fixed-symmetry axis. (use any variable or symbol stated above as necessary.)

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?