Answer:
100 J
Step-by-step explanation:
The formula for kinetic energy is as follows:

where
KE= kinetic energy (J)
m= mass (kg)
v= velocity (m/s)
Given: m= 50 kg, v= 2 m/s
Substituting the given information into the formula:
KE
= ½(50)(2²)
= ½(50)(4)
= 100 J
Answer:
4cm
Step-by-step explanation:
Given data
L=(2x+3)
W=(x-1)
P=28cm
A= L*W
A= (2x+3)*(x-1)
open bracket
A= 2x^2-2x+3x-3
collect like terms
A= 2x^2+x-3
P= 2L+2W
P= 2*(2x+3)+2(x-1)
P= 4x+6+2x-2
collect like terms
P= 6x-4
but p= 28
28= 6x-4
28-4= 6x
24= 6x
x= 24/6
x= 4cm
Hence x= 4cm
Answer:
92
Step-by-step explanation:
You do (9x8) + (5x4). 9x8 = 72 and 5x4=20. add 72 and 20 and get 92!
Answer:

Step-by-step explanation:
I will upload a picture with my work.
Answer:
figured it out is 25
Step-by-step explanation:
hope this helps:)