# Physics

posted by .

A 880 kg car strikes a huge spring at a speed of 20 m/s (Fig. 11-50), compressing it 15.0 m.

(a) What is the spring constant of the spring? (Found this, it was 1564.44)

(b) How long is the car in contact with the spring before it bounces off in the opposite direction? <--Need help with this one, thanks!

• Physics -

f=ma => kx/m=v/t slove for t

• Physics -

200

## Similar Questions

1. ### Physics

A 930 kg car strikes a huge spring at a speed of 22 m/s, compressing the spring 12.0 m. (a) What is the spring stiffness constant of the spring?
2. ### Physics

A 1000 kg car rolling on a horizontal surface has speed v = 55 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2 m. What is the spring stiffness constant of the spring?
3. ### Physics

A light spring of constant k = 158 N/m rests vertically on the bottom of a large beaker of water (Fig. P9.34a). A 5.55 kg block of wood (density = 650 kg/m3) is connected to the spring and the mass-spring system is allowed to come …
4. ### physics

A 1350 kg car rolling on a horizontal surface has a speed of 40 km/hr when it strikes a horizontal coiled spring and is brought to rest in a distance of 5.5 m. What is the spring constant (in N/m) of the spring?
5. ### Physics

A spring has an equilibrium length of 20.0 cm and a spring constant of 57.9 N/m. The spring is connected to the underside of the roof of a car and a 0.294 kg block suspended from it. How long (in cm) is the spring when the car is at …
6. ### physics

A 900kg car strikes a huge spring at a speed of 22m/s, compressing the spring 4.0m How long is the car in contact with the spring before it bounces off in the opposite direction?
7. ### Physics

you strike a huge spring at a speed of 30m/s while strapped in a steel cage. When you hit the spring with combined mass of 320kg it is compressed 9.0m. A) What is the spring constant of the spring?
8. ### physics

A 0.5-kg block slides along a horizontal frictionless surface at 2m/s. It is brought to rest by compressing a very long spring of spring constant 800N/m. The maximum spring compression is:
9. ### physics

A mass on a spring A oscillates at twice the frequency of the same mass on spring B. Which statement is correct?
10. ### physics

A mass on a spring A oscillates at twice the frequency of the same mass on spring B. Which statement is correct?

More Similar Questions