A 55kg girl swings on a swing, whose seat is attached to the pivot by 2.5m long rigid rods (considered to be massless in this problem). As she swings, she rises to a maximum height such that the angle of the rods with respect to the vertical is 32 degrees. What is the average torque on the rods due to her weight, as she moves during one cycle of her swinging from the bottom of her swing path to the highest point?
A. 370 Nm
B. 970 Nm
C. 2400 Nm
D. 2000 Nm
A. 370 Nm
Physics & Space Science
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a. continuous
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Physics & Space Science
A child runs at 3.0 m/s and jumps onto a sled, initially at rest. If the child's mass is 36 kg, and if the child and sled slide off together at 2.0 m/s after the collision, the sled's mass is
A. 48 kg. B. 18 kg. C. 12 kg. D. 36 kg.
Physics & Space Science
To multiply two powers of ten:
a. multiply the exponents. b. add the exponents. c. multiply the numbers and add the exponents. d. multiply the exponents and add the numbers. e. multiply the numbers and subtract the exponents.
Physics & Space Science
Of the three types of nuclear decay, only __________ does not affect the atomic number of the nucleus
Fill in the blank(s) with correct word
Physics & Space Science