Each of 15 students will give a 1 1/2 minute speech in english class. suppose the teacher begins recording on a digital camera with an hour available. show that ther's enough time to record everyone if she gives a 15 minute introduction at the begginning of class and every student takes a minute to get ready. how much time is left on the digital camera?

a) 15/7

step-by-step explanation:

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.