Question 7 Convert the gravitational acceleration g = 9.8 m/s² to (ft/s²). g = ft/s?
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- 1. The acceleration due to gravity at a certain level is 9.78 m/s2. This acceleration varies by 8.28 x 10 -4 m/s2 for every 100 m ascent. a. Find the height of an object above this level where the acceleration due to gravity is 9.70 m/s2. b. Find the weight of an object relative to this point whose mass is 80 kg at a height of 10,000 meters.Convert the gravitational acceleration g = 9.8 m/s? to (ft/s?).The gravity acceleration at a certain level is 9.78 m/s². This accelartion varies by 8.28 x 104 m/s² for every 100m ascent. a. Find the weight of an object above this level where the acceleration due to gravity is 9.70 m/s². b. Find the weight of an object relative to this point whose mass is 80 kg at a height of 10, 000 meters 1. c. Find the height above this point if the weight of a man decreased by 5%
- 1- Calculate the piston travel, velocity, and acceleration for an engine with R= 50 mm and lo=170 mm using the equation and graphical representation and compare the results (take 45° increment ,N= 3000 r.p.m).The acceleration due to gravity at sea level is gR81 m/sland is decreased 000S ft/s per 1000 ft of elevation. Find the height (miles) above sea level for which the weight of a 75 kgi decreased by 10 101.3 miles O 326.85 miles O 203.14 miles O 110.3 miles NeitQ1: 1. 3. Find the relative velocity of car A relative to в. Choose the correct answer 20 m/s 50 m/s A car is moving on a concave road as shown [30 m/s Find the reaction between the car and road mass of car = 900 kg and R = 50 m ( assume g = 10 m/s ) ( a =v/r) Select one: Select one: a. 50 m/s angle 45 a. 18000 kg b. 58.3 angle 30.9 b. 1800 kg c. 50 m/s angle 36.87 c. 18000 N d. 40 m/s angle 30 d. 16200 N 2. 4. A car initial velocity is 12 m/s moves with accn 3 Find the accn of the frictionless system shown. m/s Assume the pulleys are light and have no friction Assume g = 10 m/s" Find the its velocity after it moves a distance of 4kg 120 m 8 kg { laws you may use are 2 V,- V, = at , v. - v, = 2zas , s = v, t• 0.5 at } D1kg 5 kg Choose the correct answer Select one: a. 29.4 m/s Select one: b. 29.4 mm a. 1.579 m/s c. 23 m/s b. 2.22 m/s d. 21.9 m/s C. 2 m/s O d. 3 m/s
- maximum acceleration without tipping (m/s2) ? maximum value of P (N) without tipping ?1/3 ) m/s? ,where t in Q2: A car travels along straight line with acceleration (a = 24 t + 4 t seconds . Determined the velocity and the position of the care as a function of time . When t = 0 , v = 0 and s = 10m.Consider the portion of an excavator shown. At the instant under consideration, the hydraulic cylinder is extending at a rate of 6 in./sec, which is decreasing at the rate of 3 in./secevery second. Simultaneously, the cylinder is rotating about a horizontal axis through O at a constant rate of 12 deg/sec. Determine the velocity v and acceleration a of the clevis attachment at B. 2.7 B 3.6' PA 37° Part 1 Correct Determine the indicated terms used in the velocity and acceleration formulas. 2.7 B 3.6' 37° Answers: r- 75.6 in. 37 トー 6 in./sec 9 - 0.21 rad/s Fー -3 in./sec? 0 - rad/s?
- Five objects in a region where the acceleration due to gravity is 30.2 ft/s2 are as follows: x1 = 400 g of mass; x2 weighs 850gf; x3 weighs 35 poundals; x4 weighs 3lbf; x5 is 0.50 slug of mass. What is the total mass expressed in lbm.THERMODYNAMICS Prob 1. A piston weighs 4.3 kgs and has a cross sectional area of 450 mm2. Determine the pressure that is exerted by this piston on the gas in the chamber, as shown in the figure. Assume gravitational acceleration 'g' to be 9.81 m/sec?. Piston Gas Prob 2. Find the mass of air in a closed chamber measuring 35 ft x 20 ft x 10 ft, when the pressure is 17 Ib/in? and the temperature is 75°F. Assume air to be an ideal gas.At maximum acceleration, the velocity of some car accelerating from rest in a straight line can be ft approximated by the equation v(t) = -4.5t² + 55t for the first 5 seconds of travel. S ft a. What is the initial acceleration (in 82 -)? b. How many seconds would it take to go 0-60 mph? c. How far has it traveled in ft when it reachs 100 mph?