418 CHAPTER 17 PLANAR KINETICS OF A RIGID BODY: FORCE AND ACCELERATION 17.1 MASS MOMENT OFINERTIA 419
WWE. Determine the radius of gyration kx of the body. The i The frustum is formed by rotating the shaded area
specific weight of the material is y = 38
16 CHAPTER 12 KINEMATICS OF A PARTICLE
a a Initially, the car travels along a straight road with a
speed of 35 m/s. If the brakes are applied and the speed of
the car is reduced to 10 m/s in 15 s, determine the constant
deceleration of the car.
80 CHAPTER 12 KINEMATICS OF A PARTICLE
124156. A particle is moving along a circular path having a
radius of 4 in. such that its position as a function of time is
given by 6 = cos 2t, where 6 is in radians and tis in seconds.
Determine the magnitude of th
16.3 ROTATION ABOUT A FIXED AXIS 331
CHAPTER 16 PLANAR KINEMATICS OF A RIGID BODY
may, The angular velocity of the disk is defined by .ttiwéi. The disk is driven by a motor such that the angular
E‘M’ﬁw When th‘? gear mtates 20 IeVOlutiana it
CHAPTER 13 KINE
The speed of the 3500—lb sports car is plotted over
the 30-s time period. Plot the variation of the traction force
F needed to cause the motion.
The conveyor belt is moving at 4 m/s. If the
The spring is placed between the wall and the 10—kg
block. If the block is subjected to a force of F = 500 N,
determine its velocity when s = 0.5 m. When 5 = 0, the
block is at rest and the spring is uncompressed. The contact
CHAPTER 14 KINETICS OF A PART
meat. The 0.5—kg ball strikes the rough ground and
rebounds with the velocities shown. Determine the
magnitude of the impulse the ground exerts on the ball.
Assume that the ball does not slip when it strikes the
ground, and neglect the size of the ball an