# Physics

An object a is moving 10m/s and B is moving with 5m/s in the same direction of positive x-axis. A is 100m behind B has shown. Find time taken by a to meet b

1. 👍 0
2. 👎 0
3. 👁 259
1. time=relative distance/relative speed=100m/(10-5)m/s= 20 sec

1. 👍 1
2. 👎 0
2. Va*t = Vb*t + 100.
10t = 5t + 100,
t = 20 s.

1. 👍 2
2. 👎 0

## Similar Questions

1. ### physical science

If the force moving an object point's at least partially in the opposite direction of the object's motion, the work is considered to be what

asked by Jerrell on May 11, 2011
2. ### Physics

A(n) 19 g object moving to the right at 39 cm/s overtakes and collides elastically with a 36 g object moving in the same direction at 19 cm/s. Find the velocity of faster object after the collision. Answer in units of cm/s. (I

asked by Anonymous on April 2, 2020
3. ### physics

John is listening to a horn. He knows the frequency of the horn is 300 Hz when both he and the horn are at rest. If he hears a pitch of 330 Hz, there are clearly several possibilities. For each of the following statements,

asked by Joan on May 16, 2011
4. ### physics

A 2.0-kg object moving with a velocity of 5.0 m/s in the positive x direction strikes and sticks to a 3.0-kg object moving with a speed of 2.0 m/s in the same direction. How much kinetic energy is lost in this collision?

asked by Ben on August 13, 2012
5. ### Physics

A(n) 19 g object moving to the right at 39 cm/s overtakes and collides elastically with a 36 g object moving in the same direction at 19 cm/s. Find the velocity of the slower object after the collision. Answer in units of cm/s.

asked by Todoroki on April 1, 2020
1. ### Physics

An 67.6 kg object moving to the right at 38.7 cm/s overtakes and collides elastically with a second 48.9 kg object moving in the same direction at 19.2 cm/s. Find the velocity of the second object after the collision. Answer in

asked by help on March 5, 2013
2. ### Physics

An 67.6 kg object moving to the right at 38.7 cm/s overtakes and collides elastically with a second 48.9 kg object moving in the same direction at 19.2 cm/s. Find the velocity of the second object after the collision. Answer in

asked by colby on February 26, 2013
3. ### physics

An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction

asked by lili on November 27, 2012
4. ### Physical Science

A distance-time graph indicates than an object moves 100 m in 4 s and then remains at rest for 6 s. What is the average speed of the object? A. 50 m/s B. 25 m/s** C. 10 m/s D. 100 m/s Which example identifies a change in motion

asked by HELP ME on January 24, 2019
5. ### Physics

An object A of mass 20kg moving with an initial velocity of 3m/s makes a head on collision with object B mass 10kg moving with a velocity of 2m/s in opposite direction if A and B stick together after collision calculate their

asked by Chris on April 30, 2019
6. ### Physics

A 26.0 g object moving to the right at 17.0 cm/s overtakes and collides elastically with a 10.0 g object moving in the same direction at 15.0 cm/s. Find the velocity of each object after the collision. a) 26.0 g object b) 10.0 g

asked by Daisy on July 16, 2010