A few days ago
Anonymous

Physics MOTION… Help please…?

1) A police car leave sin pursuit of a hold up car 0.50 h after the latter has left the crime at 75 mi/h. How fast must the police go if it is to catch up with the hold up car in 1h?

2) A snake is slithering toward you at 1.5 m/s. If you start walking when it is 5m away, how fast must you go in order that the snake not overtakes you when you had gone 40 m?

3) A hare and a tortoise compete in a race over a course 1.0 km long. The tortoise crawls straight and steadily at its maximum speed of 0.2 m/s toward the finish line. The hare runs at its maximum speed of 8.0 m/s toward the goal for 0.8 km and then stops to tease the tortoise. How close to the goal can the hare let the tortoise approach before resuming the race, which the tortoise wins in a photo finish? Assume that, when moving, both animals move steadily at their respective maximum speeds.

Thanks to those who’ll be helping me.. I really don’t know how to solve these physics problems..

Top 1 Answers
A few days ago
Twiggy

Favorite Answer

1) Assuming that the hold up car maintains its average speed of 75 m.p.h. for a further hour, it will then have traveled a distance of 37.5 + 75 = 112.5 miles after 11/2 hours. So in order to catch it up in 1 hour, the police car must travel at an average speed of 112.5 m.p.h.
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