1.a car moves with constant speed of 10 m/s in a circular path of radius 10 m. the mass of the car is 1000 kg. who or what is providing the required centripetal force for the car ? how much is it ?

2. the bob of the pendulum of length 1m has mass 100g and a speed of 1.4 m/s at the lowest point in its path. find the tension in the string at this moment.

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Answers

The Brainliest Answer!
2016-01-19T23:09:07+05:30
1.  The centripetal force is provided by the engine which supplies energy to the wheels and creates momentum.
Centripetal force =  \frac{mv^2}{r}
Centripetal force = 1000 × 10² ÷ 10
Centripetal force = 10000N
2.  T - mg = mv² ÷ r
T = mv² ÷r + mg
T= 0.1kg × 1.4² ÷1 + 0.1 × 10
T = 0.1 × 1.96 + 1
T = 0.196 + 1
T = 1.196N
2 5 2
thank u so much for the answers :)