The angular acceleration of a body = 3t2. What will be its speed at t=10s, if initial speed = 10rad/s? a) 1010 rad/s b) 300 rad/s c) 1310 rad/s d) 1000rad/s
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The
a) 1010 rad/s
b) 300 rad/s
c) 1310 rad/s
d) 1000rad/s
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- 6) Suppose the lady bug's position on a wheel is given as θ=7t-3t^2, where θ is in radians and t is in seconds. what is the lady bug's instantaneous angular acceleration at t=5x10^250 seconds? a) cannot be determined b) 10x10^125 rad/s^2 c) -6 rad/s^2 d) -3 rad/s^2 e) -12 x10^95 rad/s^2What is the equation for angular velocity?4) suppose a lady bug's position on a wheel is given as θ=7t-3t^2, where θ is in radians and t is in seconds. What is the lady bug's instantaneous angular velocity at t=3 seconds? a) 20 rad/s b) -11 rad/s c) 3.0 rad/s d) -15 rad/s e) -18 rad/s
- 9. Situational Question The rotation of a pulley is defined by the relation a=2t where a is in rad/s^2 and t is in seconds. When t=0, w=4 rad/s and = 0. Compute the value of wat t=5sec. a. 8 rad/s b. 25 rad/s c. 4 rad/s d. 29 rad/s Compute the value of e at t=5sec. a. 11 rad b. 62 rad c. 52 rad d. 31 rad A boy kicks a 0.15kg ball such that it leaves the ground at an angle of 45 degrees with the vertical and strikes the ground at the same elevation at a distance of 15m away. Determine the impulse on his foot on the ball at A. a. 1.749 kg-m/s b. 1.280 kg-m/s c. 1.947 kg-m/s d. 1.820 kg-m/s 9i. 9ii. 9iii.Pilots can be tested for stresses of flying high speed jets in a whirling human centrifuge that takes 1.5 min to turn through 29 complete revolutions before reaching final speed. a) calculate angular acceleration in rad/s^2 b) final angular speed in rpmA diver makes 2.0 revolutions on the way from a 8.8-m-high platform to the water. Assuming zero initial vertical velocity, find the diver's average angular velocity during a dive. Number i Units
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