# Kinematics-Motion in a Straight Line (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 28 - 30 of 47

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## Question number: 28

» Kinematics » Motion in a Straight Line

MCQ▾

### Question

A car accelerates from rest at a constant rate for some time, after which it decelerates at a constant rate β and comes to rest. If the total time elapsed is t, then the maximum velocity acquired by the car is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 29

» Kinematics » Motion in a Straight Line

MCQ▾

### Question

A ball is thrown vertically upwards. Which of the following graphs represent velocity-time graph of the ball during its flight? (Air resistance is neglected)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 30

» Kinematics » Motion in a Straight Line

Assertion-Reason▾

### Assertion (Ꭺ)

The position-time graph of a uniform motion in one dimension of a body can have negative slope.

### Reason (Ꭱ)

When the speed of body decreases with time, the position-time graph of the moving body has negative slope.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

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