4.) How long (T in seconds) does a force of F=200N need to be applied to a mass of M=10kg, to accelerate it from rest to a final velocity of Vf=30 m/s?
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- if 20N force acting on a stationary body changes its velocity to 10m/s in 5 seconds , then the mass of the body will be 10kg. true or false?If we exert 1200N on an object to cause it to accelerate 0.55m/s2, what is the mass of the object?6). An object with 2000 kg is traveling at 15m/s. How much larger than its rest mass as compares to its mass at this speed?
- As the amount the object’s of mass increases, what happens to the amount of force needed to begin moving the object? Explain.A 2.5-g bullet traveling at 350 m/s hits a tree and slows uniformly to a stop while penetrating a distance of 12 cm into the tree’s trunk. What force was exerted on the bullet in bringing it to rest?A spacecraft can only have a maximum speed of 970 km/s. Its mass driver is initially moving at a rate of 80 km/s and has to travel a distance of 12500 to reach a portal that closes in 40 seconds. If the driver continued to accelerate until his fastest speed and maintains it before the portal closes, what should the driver's minimum acceleration be to reach the portal?
- Determine the net force required to accelerate a 540kg ultra light car from 0-27 m/s (60mph) in 10.0 seconds?A bowling ball weighing 46.5 N initially moves at a speed of 5.10 m/s. How long must a force of 44.5 N be applied to the ball to stop it?A body of mass 15 kg moving with velocity of 2 m/s is acted upon by a force of 75 N for two seconds. The final velocity will be
- A Princeton prof. (mass = 70.0 kg), surprised by the large stopping force he calculates for jumping flat footed from a height of 0.12 m, decides to try the experiment. Calculate he deceleration (in g′s) if he stops in a distance of 0.36 cm. (Do not try this. You could easily break an ankle!)39 - I. Force/AccelerationII. Momentum/SpeedIII. Power/ForceWhich of the above ratios gives the mass? a) I and II B) only I NS) I, II and III D) only II TO) I and IIIOne hazard of space travel is the debris left by previous missions. There are several thousand mass is large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. Calculate the force exerted by 0.140Mg of paint that's tracks a space shuttle window at a relative speed of 5.00×10^3 m/s and sticks , given The collision last 6.00 x 10^-8s such a collision chip the window of the ill-fated challenger in June 1983, causing $50,000 of damage. n? I used the symbol ^ to show exponent