Gravity is a force that pulls things
1 answer:
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Answer:
18.6 m/s
Explanation:
The frictional force acting on the car is given by:
But the frictional force also corresponds to the centripetal force that keeps the car in circular motion in the turn:
Where v is the maximum speed the car can achieve remaining in the turn. Substituting r=88.0 m and re-arranging the formula, we can find the value of v:
Answer:
The parachuter is falling at a speed of 31.667 meters per second.
Explanation:
Given that parachuter falls at constant speed and travelled distance and time are known, the unknown is speed, measured in meters per second, which is obtained by the following kinematic expression:
Where:
- Travelled distance, measured in meters.
- Time, measured in seconds.
If and
, the speed of the parachuter is:
The parachuter is falling at a speed of 31.667 meters per second.