U= 9.4m/s
v= -7.4m/s (Negative sign because it is in the opposite direction as he is rolling back)
t= ?
s= ?
a= ?
Now, a= v-u/t
= -7.4-9.4÷3
=-5.6
By the second equation of motion.
s= ut+1÷2at*2 ( *2 is the power)
s= 9.4×3+1÷2×-5.6×3*2
= 28.2 +(-25.2)
=3
Therefore s or the distance travelled is 3m.
A)I=PTR/100 b)i)T=I*100/PR ii)R=I*100/PT iii)P=I*100/TR
Answer:
Step-by-step explana
Move all terms that don't contain
x
to the right side and solve.
x
=
1
2
+
5
y
2
Area of triangle = base x height x 1/2
Area of the triangle:
= 12 x 15 x 1/2
= 180 x 1/2
= 90 units^2
The correct answer is 4x to the third power.
