A force of 200 N acts on a 7.20-kg bowling ball for 0.350 s. Calculate its change in velocity.
7.20/0.350
= 20.57 m/s
200*.350
= 70 m/s
I never had a calculator that could think.
I havent either
Many of the equations that you write down here and elsewhere are incorrect and could be easily verified if you kept track of dimensions.
(change in V, m/s)
= (Force, kg*m/s^2)*(time,s)/(Mass, kg)
= 200*0.350/7.2 = 9.7 m/s
(1 N is the same as 1 kg*m/s^2)
When showing your work, write down the equation you are using and check its dimensions yourself first. You will be able to find and correct many of your own mistakes
To calculate the change in velocity, we need to use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration. We can rearrange this equation to solve for acceleration:
Force (F) = mass (m) x acceleration (a)
Given that the force acting on the bowling ball is 200 N and the mass of the ball is 7.20 kg, we can substitute these values into the equation:
200 N = 7.20 kg x acceleration
Solving for acceleration, we get:
acceleration = 200 N / 7.20 kg
acceleration ≈ 27.78 m/s^2
Next, we can use the equation to calculate the change in velocity:
Change in velocity = acceleration x time
Given that the time is 0.350 s, we can substitute these values into the equation:
Change in velocity ≈ 27.78 m/s^2 x 0.350 s
Change in velocity ≈ 9.72 m/s
Therefore, the change in velocity of the bowling ball is approximately 9.72 m/s.
Force*time= massball*changeinvelocty
I am beginning to wonder if you are doing the algebra in your head and messing up there.