QUESTIONS find an expression for the instantaneous velocity of an object moving with rectilinear motion according...
2) The magnitude of the acceleration of an object moving in rectilinear motion is a=12 sn, where a is in m/s' and s is the distance of the point from the origin in meters. When the time t is 2 seconds, the point is 16m to the right of the origin and has a velocity of 32m/s to the right and an acceleration of 48m/s to the right. Determine: a) the velocity and acceleration of the particle when time is...
Find an expression for the velocity function, v(t), of an object moving in a straight line if the object's acceleration function is 7 sin(t) +0.06 and the object's initial velocity is 155 ft/s. Then use your function to determine the object's velocity after 28 seconds.
The acceleration of a particle in rectilinear motion is known to satisfy the relation a = x+5 (x: ft, a: ft/s2) where x is its position. Knowing that x = 3 ft and v = 8 ft/s when t = 0, find x and v when t = 0.5 s
Suppose the position of an object moving in a straight line is given by s(t) = 2t? + 3t+3. Find the instantaneous velocity when t=5. The instantaneous velocity at t = 5 is 1. Find the instantaneous rate of change for the function at the given value. g(t) = 5-t at t= - 4 The instantaneous rate of change at t = - 4 is .
1). In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b) False c) Can's say 2).In a uniform circular motion, acceleration is normal to the velocity and directed toward the center a) True b) False c) Unknown 3). For a particle of mass 'm' moving with a uniform velocity 'v'in a circle of radius 'r', write the expression for centripetal force (Fc)? 4). If a particle rotates in a circle of radius r = 10...
The velocity function of a rectilinear motion in (m/s) is given by the v(t) = 8t - 3, 2 st 55 Find the distance travelled during the given time.
I have three questions I need assistance on please: 1. To make an object start moving on a surface with friction requires (a) less force than it takes to keep it moving on the surface at constant velocity (b) the same force as to keep it moving on the surface at constant velocity (c) more force than it takes to keep it moving on the surface at constant velocity (d) a force equal to the weight of the object (2)...
5.1.15 Question Help The velocity of an object moving along a line is given by v 2t+4 ft/s on the interval 0sts4. a. Divide the interval [0, 4] into subintervals, [0, 1], [1, 2], [2, 3], and [3, 4]. On each subinterval, assume the object moves at a constant velocity equal to the value ofv evaluated at the midpoint of the subinterval and use these approximations to estimate the displacement of the object on [0, 4]. (See part (a) of...
C, D, F??????? A partidle moves according to a law of motion s-t), t0, where t is measured in seconds and s in feet. (If an answer does not exist, enter DNE.) ft) - - 721t (a) Find the velocity at time t -32-14 +21 ft/s (b) What is the velocity after 1 second? 1)10 ft/s (c) When is the particle at rest? t 2.33333333 | X (d) when is the particle moving in the positive direction? (Enter your answer...
1).In a uniform circular motion, instantaneous velocity is tangent to the circle a) True b) False c) Can's say 2).In a uniform circular motion, acceleration is normal to the velocity and directed toward the center a) True b) False c) Unknown 3). For a particle of mass 'm' moving with a uniform velocity 'v' in a circle of radius 'r', write the expression for centripetal force (Fc)? 4). If a particle rotates in a circle of radius r= 10 cm...