Acceleration
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A bus decreases its speed from to in , find the acceleration of the bus.
The area under the velocity-time graph gives:
Distance
Velocity
Acceleration
Displacement
State which of the following situations are possible and give an example for each of these: (a) an object with a constant acceleration but with zero velocity. (b) an object moving in a certain direction with acceleration in the perpendicular direction.
What are the effects of force on an object?
A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. Find :
(a) displacement of the car
(b) The average speed of the carA
(c) Total distance traveled
A body thrown vertically upward reaches a maximum height H. It then return to ground. Calculate the distance travelled and displacement.
If a bus travelling at 20 m/s is subjected to a steady deceleration of 5 m/s2, how long will it take to come to rest?
An aircraft travelling at 600 kmh accelerates steadily at 10 km/h per second. Taking the speed of sound as 1100 km/h at the aircraft's altitude, how long will it take to reach the 'sound barrier'?
(a) Write the formula for acceleration. Give the meaning of each symbol which occurs in it.
(b) A train starting from railwaystation attains a speed of 21 ms in one minute. Find its acceleration.
A driver decreases the speed of car from 25m/sec to 10 m/sec in 5 seconds. Find the acceleration
Derive the first equation of motion.
A body dropped from a tower covers 25m in the last second of its fall. Then, the height of tower is [ take g= 10 m/s^2]
(1) 45m (2) 20m (3) 40m (4) 50m
A bus accelerates uniformly from to in . Calculate the distance covered by the bus in metres during interval and also find the acceleration in metre per second square.
Define speed. Explain different types of speed with examples.
What are the different types of acceleration?
If a body moves with uniform velocity. Why it's acceleration is0?
derive the equation for uniform accelerated motion for the displacement covered in its Nth second.(sn=u+a(n-1\2)
What is the fourth equation of motion?
The gravitational unit of force is________?
When the distance travelled by a body is directly proportional to the square of the time taken, the motion of the body is(give correct reason to support this answer ) and also why other options are not correct except correct one
A.uniform
B.uniformly accelerated
C.zig zag
D.circular
What do you mean by negative and positive acceleration ? Explain.
What is the acceleration of a body moving with uniform velocity?
Distinguish between acceleration and retardation.
A car is being driven at a speed of 20m/sec when brakes are applied to bring it to rest in 5sec. The declaration produced in this case will be??
Answer is -4 m/sec square
Teacher plz explain the evaluation