A 150 m long train travels at 72 km/h (20 m/s). what is the time span does the train spend to completely cross a 100 m long bridge?
A) 1.16 s
B) 3.47 s
C) 0.72 s
D) 2.08 s
E) 12.5 s
(if you can put the calculations)

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work

Aparticle initially located at the origin has an acceleration of = 2.00ĵ m/s2 and an initial velocity of i = 8.00î m/s. find (a) the vector position of the particle at any time t (where t is measured in seconds), (b) the velocity of the particle at any time t, (c) the position of the particle at t = 7.00 s, and (d) the speed of the particle at t = 7.00