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Minal Mathur
Subject: Science
, asked on 11/5/18
Give atleast 6 daily applications of the following
1. Distance
2. Displacement
3. Speed
4. Velocity
5. Acceleration
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
From dispalcement time graph shown in the given figure, find :-
a) velocity of A
b) velocity of B
c) meeting point and time of A and B.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
The velocity time graph of an object is shown in the following figure:-
a) state the kind of motion that the object has, from A to B and from B to C.
b) identify the part of a graph where the object has zero acceleration. Give reason.
c) identify the part of graph where the object has negative acceleration . Give reason.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
See the velocity-time graph of cars A and B shown in following diagram :-
a) which car has travelled more distance.
b) shade the distance covered by the car who has travelled less distance.
c) calculate the acceleration of car A and car B.
Answer
2
Akanksha Kurial
Subject: Science
, asked on 6/5/18
Two trains 120m and 80m in length are running in opposite directions with velocities 42km/hr and 30km/hr. In what time will completely cross each other?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
A cyclist completes 8 revolution of a circular track of radius 98m with a uniform speed in 40 mins. Calculate the speed.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
A truck running at 90km/hr, slow down to 54km/hr over a distance of 20m. Calculate :-
a) Retardation produced by the brakes.
b) The time in which the truck slows down.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
An airplane taking off from a field has a run of 500m. What is the acceleration and take off velocity if it leaves the ground 10 seconds after the start?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
A ball is gently dropped from a height of 20m. If its velocity increases uniformly at the rate of 10m/s? , with what velocity will it strike the ground ? After what time will it strike the ground?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
A bullets moving with a velocity of 200m/s strikes a wooden block and pierces up to 10 cm into it. Calculate the magnitude of retardation of the bullet, while piercing the wooden block, assuming the retardation to be uniform. What time is taken by the bullets for piercing through the wooden block?
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
Laser signal sent from the earth takes a time of 1.28 seconds to reach the earth. If the speed of laser signal be 3.0?10 to the power 8 m/s, calculate the distance of moon from the earth.
Answer
1
Akanksha Kurial
Subject: Science
, asked on 6/5/18
A metro train starts from a station and under uniform acceleration, it acquires a velocity of 72 km/h in 10 sec. Calculate its acceleration and the distance covered during this time.
Answer
1
Minal Mathur
Subject: Science
, asked on 6/5/18
Write down daily applications of the following terms and explain them briefly.
Distance, Displacement, Speed, velocity and acceleration.
Answer
1
Ananti
Subject: Science
, asked on 6/5/18
which of the 3 equations of motion is to be used to find acceleration when the value of all the other variables u,v,t,s is known
Answer
1
Darshana R S
Subject: Science
, asked on 6/5/18
But when I took
π
value as 22/7 I got answer 11065.5 km/h? Explain
Answer
1
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What are you looking for?
1. Distance
2. Displacement
3. Speed
4. Velocity
5. Acceleration
a) velocity of A
b) velocity of B
c) meeting point and time of A and B.
a) state the kind of motion that the object has, from A to B and from B to C.
b) identify the part of a graph where the object has zero acceleration. Give reason.
c) identify the part of graph where the object has negative acceleration . Give reason.
a) which car has travelled more distance.
b) shade the distance covered by the car who has travelled less distance.
c) calculate the acceleration of car A and car B.
a) Retardation produced by the brakes.
b) The time in which the truck slows down.
Distance, Displacement, Speed, velocity and acceleration.