Physics-

General

Easy

Question

# A particle starts from rest at and undergoes an acceleration in with time in second which is as shownWhich one of the following plot represents velocity in time in second?

## The correct answer is:

### A particle starts from rest at

The equation of motion

The velocity for next 2 s

Hence, graph will be as shown.

### Related Questions to study

physics-

### A body is at rest at . At , it starts moving in the positive -direction with a constant acceleration. At the same instant another body passes through moving in the positive -direction with a constant speed. The position of the first body is given by after time ‘’ and that of the second body by after the same time interval. Which of the following graphs correctly describes as a function of time ‘’

and

.This equation is of parabola

and

As graph shows possess minima at

.This equation is of parabola

and

As graph shows possess minima at

### A body is at rest at . At , it starts moving in the positive -direction with a constant acceleration. At the same instant another body passes through moving in the positive -direction with a constant speed. The position of the first body is given by after time ‘’ and that of the second body by after the same time interval. Which of the following graphs correctly describes as a function of time ‘’

physics-General

and

.This equation is of parabola

and

As graph shows possess minima at

.This equation is of parabola

and

As graph shows possess minima at

maths-

General solution of is

General solution of is

maths-General

physics-

### In the following graph, distance travelled by the body in metres is

Distance = Area covered between velocity and time axis

### In the following graph, distance travelled by the body in metres is

physics-General

Distance = Area covered between velocity and time axis

physics-

### Velocity-time graph for a moving object is shown in the figure. Total displacement of the object during the time interval when there is non-zero acceleration and retardation is

Between time interval 20s the 4s, there is non-zero acceleration and retardation. Hence, distance travelled during this interval = Area between time interval 20 s to 40 s

### Velocity-time graph for a moving object is shown in the figure. Total displacement of the object during the time interval when there is non-zero acceleration and retardation is

physics-General

Between time interval 20s the 4s, there is non-zero acceleration and retardation. Hence, distance travelled during this interval = Area between time interval 20 s to 40 s

Maths-

### The value of k such that lies in the plane 2x-4y+z+7=0 is

### The value of k such that lies in the plane 2x-4y+z+7=0 is

Maths-General

maths-

### The distance between the line and the plane is (units)

### The distance between the line and the plane is (units)

maths-General

maths-

### The number of solutions of the equation where for in the interval is

### The number of solutions of the equation where for in the interval is

maths-General

physics-

### The displacement-time graph of a moving object is shown in figure. Which of the velocity-time graphs shown in figure could represent the motion of the same body?

Think of the lope of the given displacement-time graph at different points and you would arrive at the correct answer.

Alternatively, look at the self-illustrative figure.

Alternatively, look at the self-illustrative figure.

### The displacement-time graph of a moving object is shown in figure. Which of the velocity-time graphs shown in figure could represent the motion of the same body?

physics-General

Think of the lope of the given displacement-time graph at different points and you would arrive at the correct answer.

Alternatively, look at the self-illustrative figure.

Alternatively, look at the self-illustrative figure.

maths-

### The value of k for which the lines and are perpendicular is

### The value of k for which the lines and are perpendicular is

maths-General

maths-

### If the straight lines x=1+s,y=-3-λs,z=1+λs and , z=2-t, with parameters s and t respectively, are co planar, then λ=

### If the straight lines x=1+s,y=-3-λs,z=1+λs and , z=2-t, with parameters s and t respectively, are co planar, then λ=

maths-General

maths-

### If 5 cas

### If 5 cas

maths-General

physics-

### A boy begins to walk eastward along a street infront of his house and the graph of his displacement from home is shown in the following figure. His average speed for in the whole-time interval is equal to

### A boy begins to walk eastward along a street infront of his house and the graph of his displacement from home is shown in the following figure. His average speed for in the whole-time interval is equal to

physics-General

maths-

### The values of satisfying and are

### The values of satisfying and are

maths-General

physics-

### A body of mass is resting on a wedge of angle as shown in figure. The wedge is given at acceleration . What is the value of a son that the mass just falls freely?

The horizontal acceleration of the wedge should be such that in time the wedge moves the horizontal distance . The body must fall through a vertical distance under gravity. Hence,

and

tanor

and

tanor

### A body of mass is resting on a wedge of angle as shown in figure. The wedge is given at acceleration . What is the value of a son that the mass just falls freely?

physics-General

The horizontal acceleration of the wedge should be such that in time the wedge moves the horizontal distance . The body must fall through a vertical distance under gravity. Hence,

and

tanor

and

tanor

physics-

### A cyclist starts from the centre of a circular park of radius one kilometre, reaches the edge of the park, then cycles along the circumference and returns to the centre along as shown in figure. If the round trip takes ten minutes, the net displacement and average speed of the cyclist (in metre and kilometre per hour) is

Net displacement and total distance

Average speed

Average speed

### A cyclist starts from the centre of a circular park of radius one kilometre, reaches the edge of the park, then cycles along the circumference and returns to the centre along as shown in figure. If the round trip takes ten minutes, the net displacement and average speed of the cyclist (in metre and kilometre per hour) is

physics-General

Net displacement and total distance

Average speed

Average speed