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- a car starts from rest and travels 10 sec. with an acceleration of a=4-0.3t, then runs for 30 seconds at constant velocity and finally comes to rest by decelerating at 3.125 m per sq. s Determine the velocity of the car after 10 seconds. A. 20 m/s B. 25 m/s C. 30 m/s D. 35 m/s E. none of the above point Determine the distance travelled by the car during the period of 10 seconds. A. 120m B. 150m C. 170m D. 182m E. None of the above Determine the total distance travelled by the car until it stop A. 950m B. 1000m C. 1050m D. 1100m E. None of the aboveA particle travels along a straight line with an acceleration of a = (13 - .2s) m/s2 , where s is in meters. Determine the velocity of the particle when s = 10 m if v = 5 m/s at s = 0.A parachute rises from the ground with a constant acceleration of 2.6 m/s2. 6 secondslater, a ball is thrown vertically upward. What must be the initial speed of the ball for itto touch the parachute? Note that at point of contact their velocity is equal.
- While travelling at a constant speed a driver saw a road block 112 m away. He applied the brakes and the car decelerated uniformly at 6.4 m/s^2. It stopped 5 m from the block. Find the initial constant speed of the vehicles in kph, if the drivers perception reaction is 2.2 secondThe acceleration of a rocket traveling upward is given by a = (6 + 0.02s) m/sec2, where s is in meters. Determine the time needed for the rocket to reach an altitude of s = 100 m. Initially, v = 0 and s = 0 when t = 0.Initially, the car travels along a straight road with a speed of 32 m/s. If the brakes are applied and the speed of the car is reduced to 10 m/s in 11s, determine the constant deceleration of the car in m per second square.
- 1. From a speed of 90 kph, a car accelerates at the rate of 10m/min/sec along a straight road . At the end of 30 seconds. What is the final velocity of the car in m/sec? 2. Determine the distance5) A car is traveling along a straight road with an acceleration of a = 1/4 * s ^ (1/4) (m/s^ 2 ) Determine the velocity when the car travels 2 (m).A motor gives gear A an angular acceleration of (2t3) rad/s2, where t is in seconds. If this gear is initially turning at 9 rad/s. The angular velocity of gear A when t = 6.1 s is
- The motion of a particle along a straight line is defined by s=⅓t³+6t² feet. Find the average acceleration during the fourth second and when the particle reverses its direction, what is its acceleration? In addition, what is the Velocity during the fourth second.A motor gives gear A an angular acceleration of (2t3) rad/s2, where t is in seconds. If this gear is initially turning at 10 rad/s. The angular velocity of gear B when t = 2.6 s isA 1 kg ball moving horizontally to the right at 12m/s strikes a 10kg block placed at rest at an inclined plane, which makes an angle of 25 degrees with the horizontal. The coefficient of restitution is 0.60 and the coefficient of kinetic friction between the block and the inclined surface is 0.40. What is the velocity of the block after impact? What is the velocity of the ball after impact?
