I need help! find a and b... ALSO EXPLAIN PLZ
a force (3i + 4j)N is applied to a box of mass 4kg. another force (ai +4j)N of magnitude 10N is to be applied in order to give the box the greatest possible acceleration. Find a and b.

ghjmutmum

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.