15/4 = 3.75 m/s2. Do not try this formula all the time. This is an exception
Answer:
0.1164 m
0.49387 m
Explanation:
m = Mass = 5 kg
g = Acceleration due to gravity = 9.81 m/s²
h = Height from which brick falls = 12 m
k = Spring constant = 8 kN/m
a) Potential energy of the brick

Potential energy in spring

The compression of spring = 0.5-0.3836 = 0.1164 m
b) Weight of the brick


The final length of the spring = 0.5-0.00613 = 0.49387 m
4 cars = 16 students
? cars = 36 students
let x be the number of cars for 36 students
4 • 36 = 16 • x
144 = 16x
144/16 = x
9 = x
It requires 9 cars for 36 students.
//Hope it helps
Answer:
speed
Explanation:
The slope of a line on any distance-time graph represents the speed of the object.
Velocity only comes in when there is speed of the object in a particular direction.