You can make a smoothie in a blender with a power of 350 watts and an efficiency of 75 percent. How much energy is actually being used to make the
smoothie in 120 seconds?
A. 31,500 J
B. 40,125 J
C. 38,900 J
O D. 10,500 J

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.