A car drives over a bump in the road draw forte diagram and write force equation

Question

A car drives over a bump in the road draw forte diagram and write force equations find the speed (in km/hr) at which the driver will experience apparent weightlessness (9.1 m/s - 33 km/hr) A 2.00 kg mass is spun in a vertical circle at the end of a 0.750 m long string At the top of the swing, the cord tension is 10.0 N draw a picture of the mass string and circle draw a force diagram for the mass at the top write force equations for the mass at the top (T mg-mv2/r) find the speed of the mass at the top (3.33 m/s) As the mass falls to the bottom of the loop. It picks up speed due to gravity. When it reaches the bottom it is moving at 6.36 m/s. draw a force diagram for the mass at the bottom of the loop find cord tension at bottom of loop (127 N) For a mass-on-a-string spun in a vertical Circle, draw a force diagram and write force equations for the two cases pictured below. (T-mv2/r; T-mgcos(theta)-mv2/r) A coin is placed on a spinning platform 13.0 cm from the centre. the platform spins at 42.0 rpm Find the friction coefficient required to keep the coin in place. (0.257) A 0.350 kg mass is attached to a 1.30 metre long string and spun in a vertical circle. The string breaks when the tension exceeds 30.0 N. Find the speed at which the cord breaks (9.93 m/s)

Explanation / Answer

T-mg = mv2/r => T = mg + m(3.332+g(2r))/r =>T =127N

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