Physics 11th

a body moves for a total of 9 seconds starting from rest with uniform acceleration and then with uniform ation which is twice of value of acceleration to stop .what is the duration of uniform acceleration

1. 👍 0
2. 👎 2
3. 👁 804
1. v=u+at

1. 👍 0
2. 👎 1
2. Distance covered in 4 secods after tha 5th seconds= S9- s5 .tha distance covered in t second is given by s = ut 1/2 at2and distance covered in nth second is given by Dn = u a/2 (2n-1)

1. 👍 0
2. 👎 1
3. Distance covered in 4 secods after tha 5th seconds= S9- s5 .tha distance covered in t second is given by s = ut 1/2 at2and distance covered in nth second is given by Dn = u a/2 (2n-1) The modern sr. sec. Bagpur palwal phone no. 8059892363

1. 👍 0
2. 👎 0
4. Use v=u+at and form two equations one for acc. And one for . Then on solving u will get d ans. I hope dat helps.. ðŸ˜€ â˜º

1. 👍 0
2. 👎 0
5. 5s

1. 👍 0
2. 👎 0
6. Yesss

1. 👍 0
2. 👎 0

Similar Questions

1. Physics

Tom is sladding down a hill. His sled starts from rest, and undergoes a uniform acceleration of 2.0 m/s2 down the slope. What is his speed after 1 second?, after 2 seconds? after 3 seconds?

2. Physics- Acceleration

A car starts at rest and accelerates at a constant rate for 12 seconds to a speed of 30 m/s. a) What is the acceleration? b) What is the total distance traveled in these 12 seconds?

3. physics

a car starts from rest , attains a velocity of 36kmph with an acceleration of 0.2m/s^2 travels 9km with this uniform velocity and then comes to halt with a uniform acceleration of 0.1m/s^2 find the total time of travel of the car.

4. math

For 4.95 seconds , a particle moves in a straight line according to the position function: s(t) = e^t(5-t)-5 . a. when id the particle at rest ? when is particle moving forward ? b. Find the total distance traveled by the particle

1. physics

A car starts from rest and travels for t1 seconds with a uniform acceleration a1. The driver then applies the brakes, causing a uniform acceleration a2. If the brakes are applied for t2 seconds, determine the following. Answers

2. physics

A 75 kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.6 m/s in 1.1 s. It travels with this constant speed for the next 7.2 s, undergoes a uniform negative

3. math

For 4.95 seconds , a particle moves in a straight line according to the position function: s(t) = e^t(5-t)-5 . a. when id the particle at rest ? when is particle moving forward ? b. Find the total distance traveled by the particle

4. Physics

solve physics question. a train moves 3.6km from rest to rest in 3minutes. the greatest speed is 90km/h, and the acceleration and retardation are uniform. find the distance travelled at full speed.

1. Physics

If a car starts from rest and travels for 5.0 seconds with a uniform acceleration of +1.5 m/s2. The driver then applies the brakes for 3.0 seconds, causing a uniform acceleration of - 2.1 m/s2. a) Sketch the velocity vs. time

2. physics

A bus moves from rest with a uniform acceleration of 2m/s(square) for the first 10s. It then accelerate at a uniform rate of 1m/s(square) for another 15s, it continues at constant speed for 70s and finally comes to rest in 20s by

3. physics

a body is moving with uniform acceleration of 10m/s2.if it starts from rest calculate its displacement after 5s

4. physics

A car starts from rest and travels for 5.0 seconds with a uniform acceleration of +1.5 m/s^2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s^2. If the brakes are applied for 3.0 seconds, how fast is