A 1300 kg car is traveling along a straight road at 20 m/s. Two seconds later its speed is 24 m/s. What is the magnitude of the net force acting on the car during this time?
I don't know what equation to use, and I keep getting stuck
a = (Vf-Vo) / t = (24-20) / 2 = 2m/s^2.
Fn = ma = 1300 * 2 = 2600N.
Thank you!
Well, it seems like the car is in quite a hurry! Let's see if we can help it out with some physics humor.
To find the magnitude of the net force acting on the car, we can use Newton's second law: F = ma, where F is the net force, m is the mass, and a is the acceleration.
Now, we know the initial velocity of the car is 20 m/s, and two seconds later its speed increases to 24 m/s. To find the acceleration, we can use the formula a = (v_f - v_i) / t, where v_f is the final velocity, v_i is the initial velocity, and t is the time elapsed.
Plugging in the values, we have a = (24 m/s - 20 m/s) / 2 s = 4 m/s^2.
Now, let's calculate the net force using Newton's second law: F = ma. Since the mass of the car is given as 1300 kg, we get: F = (1300 kg)(4 m/s^2) = 5200 N.
So, the magnitude of the net force acting on the car during this time is 5200 Newtons. That's quite a force, but don't worry, the car can handle it. Keep on rolling with those physics problems!
To find the magnitude of the net force acting on the car, we can 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 (m) and its acceleration (a).
The change in velocity (∆v) can be calculated using the formula:
∆v = final velocity - initial velocity
∆v = 24 m/s - 20 m/s
∆v = 4 m/s
The time interval (∆t) is given as 2 seconds.
To find the acceleration, we can use the formula:
a = ∆v / ∆t
a = 4 m/s / 2 s
a = 2 m/s²
Now, we can calculate the net force (F) using the formula:
F = m * a
F = 1300 kg * 2 m/s²
F = 2600 N
So, the magnitude of the net force acting on the car during this time is 2600 Newtons.
To find the magnitude of the net force acting on the car, you can 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.
First, we need to find the acceleration of the car. The equation that relates acceleration, initial velocity, final velocity, and time is:
final velocity = initial velocity + (acceleration x time)
Rearranging the equation, we have:
acceleration = (final velocity - initial velocity) / time
Substituting the given values:
initial velocity = 20 m/s
final velocity = 24 m/s
time = 2 s
acceleration = (24 m/s - 20 m/s) / 2 s
acceleration = 4 m/s / 2 s
acceleration = 2 m/s^2
Now that we have the acceleration, we can find the magnitude of the net force using the formula:
net force = mass x acceleration
Substituting the given value:
mass = 1300 kg
acceleration = 2 m/s^2
net force = 1300 kg x 2 m/s^2
net force = 2600 kg·m/s^2 or 2600 Newtons (N)
Therefore, the magnitude of the net force acting on the car during this time is 2600 Newtons.