11. The velocity of a particle is v)-(-2t) i+ (6t+2)jm/s What is the magnitude and direction...
9. A ball attached to a string of length 60 cm is spun in a uniform circle with a constant velocity at the rate of 10 rev/s. What is the centripetal acceleration of the ball? 10. A car drives with constant speed of 90 km/h around a roundabout with a diameter of 50 m. What is the centripetal acceleration of the car? 11. The velocity of a particle is v)(-2t)i+ (6t +2)jm/s What is the magnitude and direction of the...
9. A ball attached to a string of length 60 cm is spun in a uniform circle with a constant velocity at the rate of 10 rev/s. What is the centripetal acceleration of the ball? 10. A car drives with constant speed of 90 km/h around a roundabout with a diameter of 50 m. What is the centripetal acceleration of the car? 11. The velocity of a particle is v)(-2t)i+ (6t +2)jm/s What is the magnitude and direction of the...
9. A ball attached to a string of length 60 cm is spun in a uniform circle with a constant velocity at the rate of 10 rev/s. What is the centripetal acceleration of the ball? 10. A car drives with constant speed of 90 km/h around a roundabout with a diameter of 50 m. What is the centripetal acceleration of the car? 11. The velocity of a particle is v(t) (2-2t) i+ (6t +2) jm/s What is the magnitude and...
Please answer 9-11. Thank you. Only answer if you know
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9. A ball attached to a string of length 60 em is spun in a uniform circle with a constant velocity at the rate of 10 rev/s. What is the centripetal acceleration of the ball? 10. A car drives with constant speed of 90 km/h around a roundabout with a diameter of 50 m. What is the centripetal acceleration of the car? 11. The velocity of a particle is...
A particle is located at r(t) = 14t i + 6t^2 j. Find its position, velocity and acceleration at t = 2 s.
v=(4 + + 2) m/s 1. The particle is moving with a velocity of v = (4 + 2) m/s, where t is in seconds. When t = 1 s, determine: (1) the magnitude of velocity, (2) the magnitude of acceleration, and (3) the position of the particle. (15 points) va (4+²+2) t= ls racom 6 m
0/2 pts Question 22 A particle travels with a velocity of v(t) = 3t2 – 6t. What is the total distance traveled by the particle from time t = 1 to time t = 3? You Answered 2 Correct Answers 6 (with margin: 0)
The velocity of a particle traveling in a straight line is given by v (6t-3t2) m/s, where t is in seconds. Suppose that s 0 when t0. a. Determine the particle's deceleration when t3.6s b. Determine the particle's position when t 3.6 s C. How far has the particle traveled during the 3.6-s time interval? d. What is the average speed of the particle for the time period given in previous part?
3) A particle moves in the xy-plane with velocity v (m/s) for time t (s) according to u = (6t-4t2)1+ 9). a. Determine the direction of the particle at t 1.5 s in terms of an b. Determine the time or times (for t>0s) when the velocity is zero. If it c. Determine the x-component and y-component of acceleration at d. Determine the time or times (for t>0s) when the acceleration is zero. angle with respect to the x-axis. is...
the velocity of a particle traveling in a straight line is given by v=(6t-3t^2)m/s, where t is in seconds, if s=0 when t= 0. determine the particles deceleration and position when t=3s. how far has the particle traveled during the 3s time interval and what is its average speed?