PSC 2121 Lecture Notes - Lecture 2: Net Force, Kilogram, Tow Truck
Document Summary
The net force is: 60 n to the right, 60 n to the left, 30 n to the left, none of the above. Physical science psc2121: a 50-n object falling in air experiences 50 n of air resistance. Her average running speed is: 1/2 yard/s, 5 yards/s, 50 yards/s, not enough information, when a ball increases in speed by the same amount each second, its acceleration, also increases each second, decreases each second, is constant, varies. One second later its speed is: 10 m/s, 30 m/s, 60 m/s, 70 m/s. The net force on it is: 0 n, 4 n, 6 n, 10 n, none of the above, a rock is thrown vertically into the air. At the top of its path, its acceleration is. Physical science psc2121: 0 m/s2, 10 m/s2, between 0 m/s2 and 10 m/s2, greater than 10 m/s2, none of the above, a ball is thrown vertically into the air.
