4 points A basketball (m = 0.7 kg) approaches the backboard (missing the rim entirely) at a speed of 3.3 m/s. The rebound careens off the backboard at a speed of 0.9 m/s, a
true brick. Determine the magnitude of impulse delivered by the backboard onto the basketball.
O 1.68 kgm/s
0
2.31 kgm/s
ОО
1.22 kgm/s
0.63 kgm/s

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward