(a) If the rocket sled shown in Figure 4.31 starts with only one rocket burning, what is the magnitude of its
acceleration? Assume that the mass of the system is 2100
kg, the thrust T is 2.4 x 104 N, and the force of friction
opposing the motion is known to be 650 N. (b) Why is the
acceleration not one-fourth of what it is with all rockets
burning?

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

The government has declared that a hurricane is likely to hit the east coast. which government division is part of acf and provides guidance to citizens? a. job opportunities for low-income individuals b. office of human services emergency preparedness and response c. assets for independence d. low-income home energy assistance program

If forces acting on an object are unbalanced. true or false