2. A car enters a right turn that is 90° and part of a circle of radius r. The car exits the turn after time t and with two times the speed as it entered it. Averaged over the time interval t, which of the following statements is true? a) The averaged centripetal accel- eration is t2/r2. (b) the averaged centripetal acceleration is (n²r)/(4t²) (c) The averaged tangential acceleration is zero. (d) the averaged tangential acceleration is (Tr)/(3t²). A) Statements (a) and (c) B) Statements (a) and (d) C) Statements (b) and (c) D) Statements (b) and (d) 90%
2. A car enters a right turn that is 90° and part of a circle of radius r. The car exits the turn after time t and with two times the speed as it entered it. Averaged over the time interval t, which of the following statements is true? a) The averaged centripetal accel- eration is t2/r2. (b) the averaged centripetal acceleration is (n²r)/(4t²) (c) The averaged tangential acceleration is zero. (d) the averaged tangential acceleration is (Tr)/(3t²). A) Statements (a) and (c) B) Statements (a) and (d) C) Statements (b) and (c) D) Statements (b) and (d) 90%
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2.) Which one of the following state at is true? Look at picture
Transcribed Image Text:2. A car enters a right turn that is 90° and part of a circle of radius r. The car exits
the turn after time t and with two times the speed as it entered it. Averaged over the time
interval t, which of the following statements is true? a) The averaged centripetal accel-
eration is t2/r2. (b) the averaged centripetal acceleration is (n²r)/(4t²) (c) The averaged
tangential acceleration is zero. (d) the averaged tangential acceleration is (Tr)/(3t²).
A) Statements (a) and (c)
B) Statements (a) and (d)
C) Statements (b) and (c)
D) Statements (b) and (d)
90%
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