# Physics

posted by .

The force on an object is described as a function of time equation:
F(t) = 3t^2+7t
What is the impulse delievered by the force over a period of time from 0 to 5.0s? What is the average force exerted on an object over this time period? If the object has a mass of 2.0kg and is initally at rest, what is the velocity of the object at 5.0s?

## Similar Questions

1. ### winterWx

A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest. The force of the kick is given by F(t) = [(5×106)t - (2.5×109)t2] N for 0 ≤ t ≤ 2.0×10-3 s, where t is in seconds. (The player's foot is …
2. ### Physic

A 65 kg dancer leaps .32 m high. a) With what momentum does the dancer reach the ground?
3. ### Physics

The driver accelerates a 240.0 kg snowmobile, which results in a force being exerted that speeds up the snowmobile from 6.00 m/s to 28.0 m/s over a time interval of 60.0 s. b. What is the snowmobile's change in momentum?
4. ### Physics

Which conditions will result in the smallest change in momentum?
5. ### Physics

A 140 g, 90.0 mph fastball comes across the plate very nearly horizontally and is batted at 90.0 mph at a 30.0O angle (above the horizontal) toward center field. (a) Determine the impulse (in N.s) acting on the ball. (b) If the impact …
6. ### Physics

A 140 g, 90.0 mph fastball comes across the plate very nearly horizontally and is batted at 90.0 mph at a 30.0O angle (above the horizontal) toward center field. (a) Determine the impulse (in N.s) acting on the ball. (b) If the impact …
7. ### physics

The force shown in the force vs. time diagram in the figure below acts on a 1.10 kg object. Find: (a) the impulse of the force exerted on the ball.
8. ### Physics -Impulse- part 2

1) A 0.50 kg object is at rest. A 3.00 N force to the right acts on the object during a time interval of 1.50 s a) What is the impulse?
9. ### Physics

In a 1-dimensional problem, a single force acts on a 10 kg object and is given the equation F=ax+b where a=250 N/m, b=25 N, x is position of object. There is a force acting on the object while that object moves from x=0 to x=2 lasting …