To calculate the swimmer's speed, divide the distance he swam (100m) by the time it took him (48.42s):
Speed = Distance / Time
Speed = 100m / 48.42s ≈ 2.06 m/s
The swimmer's speed is approximately 2.06 m/s.
Acceleration refers to the rate at which an object's velocity changes over time. Since we only have the initial velocity and the time taken, we cannot calculate the swimmer's acceleration.
To calculate momentum, multiply the swimmer's mass by his velocity:
Momentum = Mass × Velocity
Momentum = 198lbs × 2.06 m/s
However, we need to convert the swimmer's weight from pounds to kilograms, as the standard unit for mass in the SI system is kilograms. 1 lb ≈ 0.4536 kg.
Weight in kg = 198lbs × 0.4536 kg/lb ≈ 89.81 kg
Now we can calculate the swimmer's momentum:
Momentum ≈ 89.81 kg × 2.06 m/s ≈ 185.11 kg·m/s
Therefore, the swimmer's momentum is approximately 185.11 kg·m/s.
A swimmer weighs 198lbs. He swam 100m. The time was 48.42. What is his speed, the acceleration and momentum
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