A runner moving at a constant speed of 12.7 m/s rounds a curve of radius 5.95 m. Compute the acceleration of the runner.
(State the magnitude of this acceleration.)
Are these numbers realistic?
(Yes or no)
A runner moving at a constant speed of 12.7 m/s rounds a curve of radius 5.95...
A runner moving at a constant speed of 12.1 m/s rounds a curve of radius 3.80 m. Compute the acceleration of the runner. (State the magnitude of this acceleration.)
Chapter 2, Problem 2/149 Car A rounds a curve of 139-m radius at a constant speed of 51 km/h. At the instant represented, car B is moving at 86 km/h but is slowing down at the rate of 3.9 m/s2. Determine the velocity and acceleration of car A as observed from car B. + B 139 m Answer: VA/B = + ) m/s : a A/B = + j) m/s2 Click if you would like to Show Work for this...
A race car rounds a curve at 59 m/s. The radius of the curve is 403 m, and the car's mass is 640 kg. (Assume the car's speed remains constant. Take the radially inward direction to be positive. Indicate the direction with the sign of your answer.) (a) What is the car's (centripetal) acceleration? (b) What is it in g's? (enter value to 3 decimal places) (c) What is the centripetal force acting on the car?
A train slows down at a constant rate as it rounds a sharp circular horizontal turn. Its initial speed is not known. It takes 16.4 s to slow down from 72 km/h to 27 km/h. The radius of the curve is 161 m. As the train goes around the turn, what is the magnitude of the tangential component of the acceleration? Answer in units of m/s^2. As the train goes around the turn, what is the sign of the tangential...
A 1500-kg truck rounds an unbanked curve on the highway at a speed of 20.0 m/s. the radius of the curvature of the curve is 80-m. calculate the coefficient of friction - is this cofficient of static or kinetic friction?
Car A is traveling at the constant speed of 61 km/h as it rounds the circular curve of 285-m radius and at the instant represented is at the position 8 46°. Car B is traveling at the constant speed of 81 km/h and passes the center of the circle at this same instant. Car A is located with respect to car B by polar coordinates r and with the pole moving with B For this instant determine the values of...
Consider a train that rounds a curve with a radius of 568 m at a speed of 160 km/h (approximately 100mi/h ). Calculate the friction force needed on a train pas-senger of mass 55 kg if the track is not banked and the train does not tilt.
A car rounds a curve of radius 30 m. If the maximum centripetal acceleration is 5m/s2, what is the maximum speed of the car in kilometers per hour?
A 1200-kg car rounds a circular turn of radius R, toward the right, moving at a constant speed of 10.0 m/s on a horizontal road. Its angular momentum about the center of the turn has magnitude 2.00 - 108kg. ma. a) (4p) What is the direction of the angular momentum of the car? b) (6p) What is the radius of the turn?