choice 3 because the arrow has to be downward for as. and if the divers want to live, the vx has to be going right and not 0 or they would hit the rocks. I hope it's right!
Answer:
ok bro
Explanation:
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A. The instantaneous velocity at any time is 3t^2 -12t +8.
b. The acceleration of the particle at any time is 6t - 12.
c. The acceleration when particle is at rest is 3t^2 -12t+8 = 0.
d. The particle travels like a cubic graph.
Answer:
85 m/s
Explanation:
The formula for momentum is product of weight and velocity
p=mv where m is mass and v is velocity
Given that;
Momentum = 153 kg*m/s
Weight = 1.8 kg
Velocity = ?
p=mv
153 = 1.8 * v
153/1.8 = v
85 m/s
