if a stone is theown vertically upward with a speed of u metres per second then it's speed after t seconds is given by v=u-9.8t. If the stone has an initial upward speed of 70m/s, find: a) its speed after 5 seconds. b) it's speed after 8 seconds. How do you interpret the negative answer? c) the time taken for the stone to reach its maximum height.(answer correct to two decimal place).​

2

step-by-step explanation:

the camry sales+accord sale=828,000. to make it so the two numbers are 18 thousand apart and still equal 828,000, you first need to find out what half of 828,000 is. 828,000/2=414,000. for the two numbers to equal 828,000, you have to add the same amount as you subtract from the middle. in this case, the number is 9,000 because it's half of 18,000. to equal 828,000, you have to add 9,000 to 414,000 for the camry and subtract 9,000 from 414,000 for the accord. 414,000+9,000=423,000.

414,000-9,000=405,000.

423,000+405,000=828,000.

423,000-405,000=18,

hope it

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s