Ablock of mass 3.3 kg, sliding on a horizontal
plane, is released with a velocity of 1.8 m/s.
the blocks slides and stops at a distance of
1.5 m beyond the point where it was released.
how far would the block have slid if its
initial velocity were quadrupled?

24 m

Explanation:

initial velocity is u = 3.5 m/sec

final velocity is v = 0 m/sec

distance traveled is S = 1.5 m

From kinematic equation

Making acceleration the subject,

Acceleration

When the initial velocity is quadrupled= u = 3.5*4 = 14 m/s

V = 0 m/s

then

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.