A 75-kg man standing on a scale in an elevator notes that as the elevator rises, the scale reads 825 N. What is the acceleration of the elevator? An object of mass 100kg. is accelerated uniformly from a velocity of 5m/s to 8 m/s in 6s. Calculate the Initial and Final momentum of the object. Also find the force exerted on the object? Formula for momentum is p=mv Where m = mass; v= velocity

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft