8. The below table summarizes the measured tension force (N) as a function of mass (kg), for a mass that is attached to a string and set to rotate in a uniform circular motion (with constant speed & constant radius) on a horizontal frictionless surface. Using an excel graph of F vs. m, the measured acceleration (m/s2) of the motion is: FT (kg) (N) 0.05 1.27 0.15 3.64 0.25 6.13 0.35 8.56 0.45 11.05

Fnorm= μ = 0.20 30° m= a= EF= Fnorm (normal force) Ffrict (force of friction) : = m (mass) = kg a (acceleration) = ΣF (net force) = Ffrict= Fgrav = 420 N N kg m/s/s N N m/s/s N

Given the quantities a = 1.4 m, b = 7.5 s, c = 86 m/s, what is the value of the quantity d = cb² Number i Units ?

If a mass of 3.46 kg object is attached to a string. If the force of tension in the string is 50.2 N j, what is the magnitude of the object's acceleration?

A pickup truck weighing 2500 kg travels at a constant speed of 19m/s around a circular track. The diameter of the circular track is 59m. What is the magnitude of the acceleration of the truck? Please write the answer in one decimal place

A boxer's fist and glove have a mass of m = 1.04 kg. The boxer's fist can obtain a speed of v = 9.25 m/s in a time of t = 0.21 s. Write a symbolic expression for the magnitude of the average acceleration, aave, of the boxer's fist, in terms of the variables provided.  Find the magnitude of the average acceleration, aave, in meters per square second. Write an expression for the magnitude of the average net force, Fb, that the boxer must apply to his fist to achieve the given velocity. (Write the expression in terms of m, v and t.) What is the numerical value of Fb, in newtons?

The v – s graph for a test vehicle is shown. (Figure 1) Determine its acceleration when s = 125 m Express your answer to three significant figures and include the appropriate units. HA ? m a = 6.95 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Figure < 1 of 1 Part B v (m/s) Determine its acceleration when s = 175 m. Express your answer to three significant figures and include the appropriate units. HA 50 a = 37.5 s (m) 150 200 Submit Previous Answers Request Answer P Pearson

For Problems 1 and 2, use the following formula to describe the magnitude of a drag force: 1 D = — -CA pv² 2 FD Problem 1: When a car is traveling at a speed of 30 km/h, it experiences a drag force of magnitude F. If the car increases its speed to 40 km/h, what then will be the drag force it experiences? Assume the drag force is proportional to the square of speed.

Please don't provide handwritten solution ....

The speed v of a bullet satisfies the relation vt = 84 m, where t = 0.20 s. Find v. m/s