A 51 g steel ball is released from rest and falls vertically onto a steel plate. The ball strikes the plate and is in contact with it for 0.5 ms. The ball rebounds elastically, and returns to its original height.
The time interval for a round trip is 3.00 s. In this situation, the average force exerted on the ball during contact with the plate is closest to: A) 3,000 N
B) 1,500 N
C) 2,490 N
D) 2,000 N
E) 3,500 N
Question 2
A 600-kg car is going around a banked curve with a radius of 110 m at a speed of 24.5 m/s. What is the appropriate banking angle so that the car stays on its path without the assistance of friction?
A) 60.9 B) 29.1 C) 33.8 D) 56.2 E) 13.5
Cracked Steel
Orthopedic plate and screws.
ARD Being Released from a Mine Adit
The opening of the throttle plate can be delayed as long as 30 milliseconds (0.030 sec) to allow ...
Continental United States Hurricane Strikes from 1950-2011
A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning ...