A bomb is initially at rest when it suddenly explodes into three pieces. A 2 kg piece goes north at 11 m/s, and a 7 kg p

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A Bomb Is Initially At Rest When It Suddenly Explodes Into Three Pieces A 2 Kg Piece Goes North At 11 M S And A 7 Kg P 1 (18.45 KiB) Viewed 43 times

A Bomb Is Initially At Rest When It Suddenly Explodes Into Three Pieces A 2 Kg Piece Goes North At 11 M S And A 7 Kg P 2 (21.41 KiB) Viewed 43 times

A Bomb Is Initially At Rest When It Suddenly Explodes Into Three Pieces A 2 Kg Piece Goes North At 11 M S And A 7 Kg P 3 (22.14 KiB) Viewed 43 times

A bomb is initially at rest when it suddenly explodes into three pieces. A 2 kg piece goes north at 11 m/s, and a 7 kg piece goes east at 25 m/s. The speed of the third piece is 15 m/s. What is the mass of the third piece? A) 5.9 kg OB) 7.3 kg C) 8.8 kg D) 10 kg OE) 12 kg
Two balls, each of mass m = 0.8 kg, are dropped from the same height, h = 11 m, above the ground. Ball A contacts the floor and stops. Ball B bounces up to a height of 5 m above the ground. What is the impulse exerted by the floor on ball A? A) 7.83 kg-m/s B) 9.79 kg-m/s C) 11.7 kg-m/s D) 13.7 kg-m/s E) 15.7 kg-m/s
A river is 120 m wide and the water is flowing at a rate of 2 m/s. A swimmer jumps into the river and points directly across the river. He is swept a distance of 85 m downstream. How fast can this swimmer swim? A) 2.02 m/s B) 2.42 m/s OC) 2.82 m/s D) 3.23 m/s E) 3.63 m/s