300 ft 60° When the motorcyclist is at A, his velocity is 1 ft/s and he...
Problem 12.112 A boat has an initial speed of 12 ft/s . It then increases its speed along a circular path of radius ρ = 80 ft at the rate of ú = (1.38) ft/s, where s is in feet. Part A Determine the time needed for the boat to travel s = 60 ft Express your answer to three significant figures and include the appropriate units. t= 1 Value Units Submit Request Answer Provide Feedback
During 9.85 seconds a motorcyclist changes his velocity from vx 38.5 m/s and vy 12.7 m/s to vax -22.1 m/s and v2y 29.7 m/s. Find the components of the motorcycle's average acceleration during this process, awx and avy. Number m/ s Number m/ s
During 8.99 seconds a motorcyclist changes his velocity from v1,x = -40.7 m/s and v1,y = 14.1 m/s to v2,x =-23.7 m/s and v2,y = 26.3 m/s. Find the components of the motorcycle\'s average acceleration during this process, aav,x and aav,y. Choices: a) 1.36 and 2.16 m/s2 b) 1.52 and 1.89 m/s2 c) 1.52 and 1.36 m/s2 d) 1.89 and 1.36 m/s2
A speed skater, when viewed from above, has an initial velocity of 25 ft/s T and 4 seconds later a final velocity of 25 ft/s 407 Determine the skater's average acceleration.
5:16 lLTE ) Done 1 of 5 Assessment #1 (Kinematics of a Particle) Rectilinear Motion (Straight linc Motion 3. The position of a point during the interval of time from r otor 6 is given by ** * m. (a) What is the maximum velocity during this interval of time, and at what time does it occur? (b) What is the acceleration when the velocity is a maximum? (20 m/s, 0 m/s 3. A test projectile is fired horizontally into...
Problem 12.112 A boat has an initial speed of 13 ft/s. It then increases its speed along a circular path of radius p = 80 ft at the rate of v = (1.3s) ft/s, where s is in feet. Part A Determine the time needed for the boat to travel s = 60 ft Express your answer to three significant figures and include the appropriate units. t = 2.12 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts...
A boat has an initial speed of 17 ft/s . It then increases its speed along a circular path of radius ρ = 80 ft at the rate of v˙=(1.2s)ft/s2, where s is in feet. Part A Determine the time needed for the boat to travel s = 50 ft .
(1 point) The function s(t) describes the position of a particle moving along a coordinate line, where s is in feet and t is in seconds. s(t) = 12 – In(t + 3), t20 36 If appropriate, enter answers using In . Use inf to represent oo. (a) Find the velocity and acceleration functions. u(t): a(t): (b) Find the position, velocity, speed, and acceleration at t = 1. Position (ft): Velocity (ft/sec): Speed (ft/sec): Acceleration (ft/sec2): 000 (c) At what...
The boat is traveling along the circular path with a speed of
v=(0.0625t2) m/s, where t is in seconds. (Figure 1)
Part A
If ? = 42 m , determine the magnitude of its
acceleration when t = 12 s .
Express your answer to three significant figures and include the
appropriate units.
The velocity of a car on a circular path is shown. It starts at s = 0 and t = 0. Determine its speed and acceleration magnitude at t 3s. Use n-t coordinates for this problem. (s in meters)