The 1.89-Mg dragster is traveling at 125 m/s when the engine is shut off and the parachute is released. (Figure 1) FD (kN) If the drag force of the parachute can be approximated by the graph, determine the speed of the dragster when it has traveled 400 m. Express your answer to three significant figures and include the appropriate units. με ? 50 20 20 400 s (m) v = Value Units Submit My Answers Give Up

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Your answer is partially correct. The displacement of a particle is given by s = 5t3 - 70t2 + 105t - 57 where s is in feet and t is in seconds. Plot the displacement, velocity, and acceleration as functions of time for the first 11 seconds of motion. After you have made the plots, answer the questions. Questions: Att = 2.9 -219.255 ft, v= -174.85 ft/sec, a = -53 ft/sec2 sec, Att = 6.5 -958.875 ft. v= -171.25 ft/sec, a = 55 ft/sec2 sec, Att = 7.8 ft, v= ft/sec, a = ft/sec2 S= -1124.04 -74.4 94 sec, The velocity is zero when t = i 161.05 sec and when t = i 118.94 sec

The air resistance to the motion of a vehicle is something important that engineers investigate. As you may also know, the drag force acting on a car is determined experimentally by placing the car in a wind tunnel. For a given car, the experimental data is generally represented by a single coefficient that is called the drag coefficient. It is given by the relationship: Cd = Fd/(1/2)pV2A. What is the appropriate unit for Cd if the preceding equation is to be homogeneous in units?

DYNAMICS OR RIGID BODIES (PLEASE WRITE THE COMPLETE SOLUTION. PLEASE WRITE & DRAW THE COMPLETE SOLUTIONS WITH FBD LEGIBLY. NO LONG EXPLANATION NEEDED. ANSWER IN 2 DECIMAL PLACES. BOX THE FINAL ANSWER.USE 9.81m/s2 or 32.2 ft/s2 for accelaration if necessary.)

SOLVE CAREFULLY!! Please Write Clearly and Box the final Answer for Part A, and Part B , with THE CORRECT UNITS) Thank you. Express your answer to three significant figures and include appropriate units. DRAW the kinematic diagram and label it for this problem as well Thank you

I Don't understand how to solve these. I have no idea how to set it up to get the dimension

A bullet is to be tested in the laboratory to determine the drag force on it.  Dependent parameter the drag force D (Newton) depends on the velocity of the bullet V(m/s),  the length of the bullet L(m),  sound velocity c(m/s), density of fluid ρ (kg/m3) and dynamic viscosity µ(kg/ms). Solve the problem by making the necessary assumptions and drawing the schematic figure. I-Determine the nondimensional p parameters using repeating variables ii-a bullet with a speed of 96,2 m/s in air may be modelled in a water tunnel with a test section velocity of 262 cm/s. Determine the length of the model, if the length of the bullet is 56,2 mm. The air and water temperature is 20 oC degree at 1 atm. iii- if the drag force on the model is measured to be 2,62 N, then determine the expected drag force on the bullet. Comment on dynamic similarity equivalence?