physics
posted by priyanka .
A car is travelling at 80km/h in east direction , a train is travelling at 50 m/s in north direction then what is the combined velocity of car and train?

They should be asking for what is the velocity of the car with respect to the train, or vice versa. The "combined velocity" is the vector sum. The relative velocity is the vector difference.
In this case, they both have the same magnitude. Use the Pythagorean theorem, since the separate velocities are at right angles. 
. A 2000 kg car traveling at 8.0 m/s has a rearend collision with a 1500 kg car stopped at a traffic light. The cars lock bumpers and skid off together.
a. Which of the ranges below is correct for the resulting velocity?
Respond to this Question
Similar Questions

Physics
Some how TRAIN A travelling at 36 m/s, is accidentally sidetracked onto the train track for TRAIN A. The TRAIN A engineer spots TRAIN A 100 m ahead on the same track and travelling in the same direction. The engineer jams on the brakes … 
Math
Trains a and b are travelling in the same direction on parallel tracks. Train a is travelling at 40mph and train b is travelling 48mph.Train a passes a station at 3:10 a.m. If train b passes the same station at 3:40 a.m., at what time … 
science
A car is travelling at 80km/h in east direction , a train is travelling at 50 m/s in north direction then what is the combined velocity of car and train? 
physics
A train is moving parallel and adjacent to a highway with a constant speed of 25 m/s. Initially a car is 49 meters behind the train travelling in the same directionas the train at 37 m/s and accelerating at 4 m/s^2. What is the speed … 
physics
A train is moving parallel and adjacent to a highway with a constant speed of 23 m/s. A car is traveling in the same direction as the train at 46 m/s. The car’s horn sounds at 550 Hz and the train’s whistle sounds at 360 Hz. When … 
math
A train 100m long travelling at 72 km/h overtakes another train travelling in the same direction at 54sec. Find the length of the second train 
math
A person is travelling by train and car in his whole journey.. The matter is if he is travelling first by train till 60kms and the rest by car, then his total journey has taken 4 hours.. but if he is travelling first by train till … 
physics
Car A with a mass of 1000kg is travelling east at 25m/s when it collides with car B, 2000kg, travelling north at 15m/s. After the collision, the two cars stick together and have the same velocity. Assume that they slide without friction … 
Math
Two cars, car X and car Y , start moving from the same point P on a cross intersection. Car X is travelling east and car Y is travelling north. Some time later car X is 60 km east of point P and travelling in an easterly direction … 
Science
A train travelling north at a speed of 50km/h and another train travelling in the same direction at a speed of 8km/h.Calculate the resultant velocity.