A car weighing 15,000 N is speeding down the highway at 90 km/h. What is its momentum?
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Using the equation S= C(1+r/100)^5, calculate the inflation rate of the current price of a loaf of bread in Thailand priced at 25 baht in five years where S is the inflated cost, r is the inflation rate, and C is the current price of the item.
Country: Thailand
Currency: The Baht
Recent inflation rate: -0.90 percent
Loaf of bread: 25 baht
S= 25baht(1-0.009)^5
S= 25(0.991)^5
S= 25(0.9558)
S= 23.895 baht
With an inflation rate of -0.90 percent, after five years a loaf of bread can be purchased in Thailand for less than 23.895 baht or 23.90 baht if rounded up which is about 1.10 baht less than what it can be bought for now.
To calculate the momentum of an object, you need to multiply its mass by its velocity. In this case, we'll need to convert the given information into appropriate units.
1. Convert the weight of the car from Newtons (N) to kilograms (kg):
The weight of the car is given as 15,000 N. Since weight is the force exerted on an object due to gravity, and the acceleration due to gravity is approximately 9.8 m/s^2, we can use the formula "weight = mass × acceleration due to gravity."
15,000 N = mass × 9.8 m/s^2
Rearranging the formula, we find:
mass = 15,000 N / 9.8 m/s^2
Calculating the mass, we have:
mass ≈ 1530.61 kg
2. Convert the speed of the car from kilometers per hour (km/h) to meters per second (m/s):
The speed of the car is given as 90 km/h. To convert this to m/s, we divide by 3.6 (since 1 m/s = 3.6 km/h):
90 km/h ÷ 3.6 = 25 m/s
Now that we have the mass (in kg) and velocity (in m/s), we can calculate the momentum of the car:
momentum = mass × velocity
momentum ≈ 1530.61 kg × 25 m/s
momentum ≈ 38,265.25 kg·m/s
Therefore, the momentum of the car is approximately 38,265.25 kg·m/s.