5. A tape attached to an accelerating trolley passes through a ticker that makes dots on it at a frequency of 50Hz The ticker timer makes 10 dots on a 10cm long tape such that, the distance a between the
first two dots is 0.5cm and the distance b between the last two dots is 1 5cm
(a)Determine the velocity of the trolley at:
I Distance a
II Distance b
Determine the acceleration of the trolley.
(6) State with a reason what would be observed on the spacing between the dots on the tape when
the trolley is made to move on a horizontal surface.
al velocity Y in time the distance
illo Y To the​

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

lol

explanation:

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards