John is pushing a wheelbarrow filled with sand on a building site.The total mass of the wheelbarrow and it's contents is 30kg.When he applies a force of 20N, the wheelbarrow moves forward at a constant speed.
The foremn shouts at John to hurry up , and he increases his pushing force to 50N
Calculate the wheelbarrows acceleration.
the additional 30 N force, accelerates the the 30 kg wheelbarrow at 1 m/s^2
a = f / m = 30 n / 30 kg
To calculate the wheelbarrow's acceleration, we can use Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
The formula for calculating acceleration is:
Acceleration = Net force / Mass
Given that the mass of the wheelbarrow and its contents is 30 kg and John applies a force of 50 N, we can use these values in the formula:
Acceleration = 50 N / 30 kg
Simplifying the equation:
Acceleration = 1.6667 m/s^2
Therefore, the wheelbarrow's acceleration is approximately 1.67 m/s^2.
To calculate the wheelbarrow's acceleration, we need to use Newton's second law of motion, which states that the net force acting on an object is equal to the product of its mass and acceleration. The formula for this is:
F = m * a
where F is the net force, m is the mass, and a is the acceleration.
In this case, the net force is the force exerted by John pushing the wheelbarrow, and the mass is the total mass of the wheelbarrow and its contents.
We can begin by calculating the acceleration when John applies a force of 20N.
F = 20N
m = 30kg
Using the formula F = m * a, we can rearrange it to solve for acceleration:
a = F / m
a = 20N / 30kg
a = 0.67 m/s^2
So, when John applies a force of 20N, the wheelbarrow's acceleration is 0.67 m/s^2.
Now, let's calculate the wheelbarrow's acceleration when John increases his pushing force to 50N.
F = 50N
m = 30kg
Using the same formula, we can calculate the acceleration:
a = F / m
a = 50N / 30kg
a = 1.67 m/s^2
Therefore, when John increases his pushing force to 50N, the wheelbarrow's acceleration is 1.67 m/s^2.