Question

PLEASE HELP MEEEEE ITS VERY UGRENT

Answer 1

s=4.5 m

Explanation:

in the equation s=ut+1/2at squared, u=10, a=-2, and t==1/2. So substitute the given values by the units u, a and t.

`s=ut+(1)/(2) at^(2) \\s=10*(1)/(2)+-2*(1)/(2)^(2)\\ s=5+(-2)*(1)/(4)\\ s=5+(-2)/(4)\\ s=(5*4-2)/(4)\\ s=(20-2)/(4)\\ s=(18)/(4)\\ s=4.5 m`

Answer 2

4.75

Explanation:

u = 10 a = -2 t = 0.5 (half)

need to work out u times t add 0.5 times a times t ^2

so 10 x 0.5 + 0.5 x -2 x 0.25

= 4.75