A train begins at the origin and moves at constant speed Vi=10.7 m/s toward another train...
A train begins at the origin and moves at constant speed v1=16.1 m/s toward another train which is initially at rest at a distance d=108 m from the first train. If the second train has an acceleration of magnitude a2=1.29 m/s2 toward the first train, how far does the first train move before the trains collide? (Hint : use quadratic equation and choose positive time)
A train begins at the origin and moves at constant speed v1=15.2 m/s toward another train which is initially at rest at a distance d=164 m from the first train. If the second train has an acceleration of magnitude a2=1.02 m/s2 toward the first train, how far does the first train move before the trains collide? (Hint : use quadratic equation and choose positive time)
A train begins at the origin and moves at constant speed v1=13.1 m/s toward another train which is initially at rest at a distance d=264 m from the first train. If the second train has an acceleration of magnitude a2=1.22 m/s2 toward the first train, how far does the first train move before the trains collide? (Hint : use quadratic equation and choose positive time)
A train begins at the origin and moves at constant speed v1=11.7 m/s toward another train which is initially at rest at a distance d=152 m from the first train. If the second train has an acceleration of magnitude a2=0.95 m/s2 toward the first train, how far does the first train move before the trains collide? (Hint : use quadratic equation and choose positive time)
A train begins at the origin and moves at constant speed v1=17.8 m/s toward another train which is initially at rest at a distance d=232 m from the first train. If the second train has an acceleration of magnitude a2=0.86 m/s2 toward the first train, how far does the first train move before the trains collide? (Hint : use quadratic equation and choose positive time) Select one: 74.15 m 296.59 m 129.76 m 185.37 m 240.98 m
A train begins at the origin and moves at constant speed =18.2 m/s toward another train which is initially at rest at a distance d=242 m from the first train. If the second train has an acceleration of magnitude a=0.99 m/s2 toward the first train, how far does the first train move before the trains collide? (Hint: use quadratic equation and choose positive time) Select one 245.38 m O 75.50 m 188.76 m 132.13 m 302.01 m
A train begins at the origin and moves at constant speed V1 =18.2 m/s toward another train which is initially at rest at a distance d=242 m from the first train. If the second train has an acceleration of magnitude az=0.99 m/s2 toward the first train, how far does the first train move before the trains collide? (Hint: use quadratic equation and choose positive time) Select one: 245.38 m 302.01 m 75.50 m 188.76 m 132.13 m
A typical sneeze has a maximum speed of 45 m/s. Suppose the material emitted in the sneeze begins inside the nose at rest, 1.8 cm from the nostrils. It has a constant acceleration for the first 0.29 cm and then moves at constant velocity for the remainder of the distance. Enter your answer in scientific notation. (a) What is the acceleration as it moves the first 0.29 cm? (b) How long does it take to move the 1.8 cm distance...
The truck, initially at rest with a roll of paper in the position shown, moves forward with a constant acceleration a = 5.0 m/s2. Find the distance s which the truck goes before the paper rolls off the edge of its horizontal bed. The distance d = 3.3 m, the radius of the roll is r = 920 mm, and the centroidal radius of gyration is k = 620 mm. Friction is sufficient to prevent slipping.
1. Cheetahs can accelerate to a speed of 20.0 m/s in 2.50 s and can continue to accelerate to reach a top speed of 27.6 m/s. Assume the acceleration is constant until the top speed is reached and is zero thereafter. Let the +?+x direction point in the direction the cheetah runs. Express the cheetah's top speed ?top in miles per hour (mi/h)(mi/h) . vtop = Starting from a crouched position, how much time ?accel does it take a cheetah...